Home / 508,356,078.30-762,534,117.45-139,890,318.30

Finding the Fourth Proportional to 508,356,078.30, 762,534,117.45 and 139,890,318.30

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Solution

The fourth proportional to 508,356,078.30, 762,534,117.45 and 139,890,318.30 is: 209,835,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,356,078.30 : 762,534,117.45 = 139,890,318.30 : x
  2. Step 2: Convert to fraction form
    508,356,078.30/762,534,117.45 = 139,890,318.30/x
  3. Step 3: Cross multiply
    508,356,078.30x = 762,534,117.45 × 139,890,318.30
  4. Step 4: Simplify right side
    508,356,078.30x = 106,671,140,404,690,096
  5. Step 5: Solve for x
    x = 106,671,140,404,690,096/508,356,078.30
  6. Step 6: Final answer
    x = 209,835,477.45

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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.