Home / 139,830,001.68-192,931,657.49-90,259,759.38

Finding the Fourth Proportional to 139,830,001.68, 192,931,657.49 and 90,259,759.38

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Solution

The fourth proportional to 139,830,001.68, 192,931,657.49 and 90,259,759.38 is: 124,536,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,830,001.68 : 192,931,657.49 = 90,259,759.38 : x
  2. Step 2: Convert to fraction form
    139,830,001.68/192,931,657.49 = 90,259,759.38/x
  3. Step 3: Cross multiply
    139,830,001.68x = 192,931,657.49 × 90,259,759.38
  4. Step 4: Simplify right side
    139,830,001.68x = 17,413,964,981,380,676
  5. Step 5: Solve for x
    x = 17,413,964,981,380,676/139,830,001.68
  6. Step 6: Final answer
    x = 124,536,685.78

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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.