Home / 261,760,708,987.28-392,754,452,070.97-140,607,897,742.64

Finding the Fourth Proportional to 261,760,708,987.28, 392,754,452,070.97 and 140,607,897,742.64

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Solution

The fourth proportional to 261,760,708,987.28, 392,754,452,070.97 and 140,607,897,742.64 is: 210,972,754,652.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,760,708,987.28 : 392,754,452,070.97 = 140,607,897,742.64 : x
  2. Step 2: Convert to fraction form
    261,760,708,987.28/392,754,452,070.97 = 140,607,897,742.64/x
  3. Step 3: Cross multiply
    261,760,708,987.28x = 392,754,452,070.97 × 140,607,897,742.64
  4. Step 4: Simplify right side
    261,760,708,987.28x = 55,224,377,834,761,552,396,288
  5. Step 5: Solve for x
    x = 55,224,377,834,761,552,396,288/261,760,708,987.28
  6. Step 6: Final answer
    x = 210,972,754,652.21

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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.