Home / 99,455,645.61-149,260,072.19-80,072,294.68

Finding the Fourth Proportional to 99,455,645.61, 149,260,072.19 and 80,072,294.68

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Solution

The fourth proportional to 99,455,645.61, 149,260,072.19 and 80,072,294.68 is: 120,170,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455,645.61 : 149,260,072.19 = 80,072,294.68 : x
  2. Step 2: Convert to fraction form
    99,455,645.61/149,260,072.19 = 80,072,294.68/x
  3. Step 3: Cross multiply
    99,455,645.61x = 149,260,072.19 × 80,072,294.68
  4. Step 4: Simplify right side
    99,455,645.61x = 11,951,596,484,592,774
  5. Step 5: Solve for x
    x = 11,951,596,484,592,774/99,455,645.61
  6. Step 6: Final answer
    x = 120,170,116.15

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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.