Home / 1,008,064,289.60-1,512,096,434.40-803,990,945.60

Finding the Fourth Proportional to 1,008,064,289.60, 1,512,096,434.40 and 803,990,945.60

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Solution

The fourth proportional to 1,008,064,289.60, 1,512,096,434.40 and 803,990,945.60 is: 1,205,986,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,064,289.60 : 1,512,096,434.40 = 803,990,945.60 : x
  2. Step 2: Convert to fraction form
    1,008,064,289.60/1,512,096,434.40 = 803,990,945.60/x
  3. Step 3: Cross multiply
    1,008,064,289.60x = 1,512,096,434.40 × 803,990,945.60
  4. Step 4: Simplify right side
    1,008,064,289.60x = 1,215,711,842,131,644,416
  5. Step 5: Solve for x
    x = 1,215,711,842,131,644,416/1,008,064,289.60
  6. Step 6: Final answer
    x = 1,205,986,418.40

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Half scale
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Double scale
Find fourth proportional to 1,008,064,290.60, 1,512,096,435.90 and 803,990,946.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.