Home / 1,310,946,025.80-1,967,174,865.90-493,644,880.20

Finding the Fourth Proportional to 1,310,946,025.80, 1,967,174,865.90 and 493,644,880.20

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Solution

The fourth proportional to 1,310,946,025.80, 1,967,174,865.90 and 493,644,880.20 is: 740,751,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,946,025.80 : 1,967,174,865.90 = 493,644,880.20 : x
  2. Step 2: Convert to fraction form
    1,310,946,025.80/1,967,174,865.90 = 493,644,880.20/x
  3. Step 3: Cross multiply
    1,310,946,025.80x = 1,967,174,865.90 × 493,644,880.20
  4. Step 4: Simplify right side
    1,310,946,025.80x = 971,085,801,009,656,576
  5. Step 5: Solve for x
    x = 971,085,801,009,656,576/1,310,946,025.80
  6. Step 6: Final answer
    x = 740,751,931.73

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Double scale
Find fourth proportional to 1,310,946,026.80, 1,967,174,867.40 and 493,644,881.20
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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.