Home / 458,431,358.86-687,647,251.59-147,538,931.14

Finding the Fourth Proportional to 458,431,358.86, 687,647,251.59 and 147,538,931.14

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Solution

The fourth proportional to 458,431,358.86, 687,647,251.59 and 147,538,931.14 is: 221,308,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,431,358.86 : 687,647,251.59 = 147,538,931.14 : x
  2. Step 2: Convert to fraction form
    458,431,358.86/687,647,251.59 = 147,538,931.14/x
  3. Step 3: Cross multiply
    458,431,358.86x = 687,647,251.59 × 147,538,931.14
  4. Step 4: Simplify right side
    458,431,358.86x = 101,454,740,500,947,264
  5. Step 5: Solve for x
    x = 101,454,740,500,947,264/458,431,358.86
  6. Step 6: Final answer
    x = 221,308,465.36

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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.