Home / 149,420,442.15-224,198,764.38-76,688,298.72

Finding the Fourth Proportional to 149,420,442.15, 224,198,764.38 and 76,688,298.72

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Solution

The fourth proportional to 149,420,442.15, 224,198,764.38 and 76,688,298.72 is: 115,067,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,420,442.15 : 224,198,764.38 = 76,688,298.72 : x
  2. Step 2: Convert to fraction form
    149,420,442.15/224,198,764.38 = 76,688,298.72/x
  3. Step 3: Cross multiply
    149,420,442.15x = 224,198,764.38 × 76,688,298.72
  4. Step 4: Simplify right side
    149,420,442.15x = 17,193,421,815,428,334
  5. Step 5: Solve for x
    x = 17,193,421,815,428,334/149,420,442.15
  6. Step 6: Final answer
    x = 115,067,400.20

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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.