Home / 689,247,660.97-951,160,618.96-375,981,874.93

Finding the Fourth Proportional to 689,247,660.97, 951,160,618.96 and 375,981,874.93

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Solution

The fourth proportional to 689,247,660.97, 951,160,618.96 and 375,981,874.93 is: 518,854,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,247,660.97 : 951,160,618.96 = 375,981,874.93 : x
  2. Step 2: Convert to fraction form
    689,247,660.97/951,160,618.96 = 375,981,874.93/x
  3. Step 3: Cross multiply
    689,247,660.97x = 951,160,618.96 × 375,981,874.93
  4. Step 4: Simplify right side
    689,247,660.97x = 357,619,152,876,160,128
  5. Step 5: Solve for x
    x = 357,619,152,876,160,128/689,247,660.97
  6. Step 6: Final answer
    x = 518,854,358.35

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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.