Home / 1,128,499,240.40-1,692,748,860.60-686,552,904.80

Finding the Fourth Proportional to 1,128,499,240.40, 1,692,748,860.60 and 686,552,904.80

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Solution

The fourth proportional to 1,128,499,240.40, 1,692,748,860.60 and 686,552,904.80 is: 1,029,829,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,499,240.40 : 1,692,748,860.60 = 686,552,904.80 : x
  2. Step 2: Convert to fraction form
    1,128,499,240.40/1,692,748,860.60 = 686,552,904.80/x
  3. Step 3: Cross multiply
    1,128,499,240.40x = 1,692,748,860.60 × 686,552,904.80
  4. Step 4: Simplify right side
    1,128,499,240.40x = 1,162,161,647,341,820,160
  5. Step 5: Solve for x
    x = 1,162,161,647,341,820,160/1,128,499,240.40
  6. Step 6: Final answer
    x = 1,029,829,357.20

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Double scale
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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.