Home / 981,799,831.49-1,354,912,380.15-535,791,922.70

Finding the Fourth Proportional to 981,799,831.49, 1,354,912,380.15 and 535,791,922.70

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Solution

The fourth proportional to 981,799,831.49, 1,354,912,380.15 and 535,791,922.70 is: 739,408,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,799,831.49 : 1,354,912,380.15 = 535,791,922.70 : x
  2. Step 2: Convert to fraction form
    981,799,831.49/1,354,912,380.15 = 535,791,922.70/x
  3. Step 3: Cross multiply
    981,799,831.49x = 1,354,912,380.15 × 535,791,922.70
  4. Step 4: Simplify right side
    981,799,831.49x = 725,951,109,244,845,312
  5. Step 5: Solve for x
    x = 725,951,109,244,845,312/981,799,831.49
  6. Step 6: Final answer
    x = 739,408,467.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.