Home / 99,432,321.95-137,220,882.12-55,379,340.38

Finding the Fourth Proportional to 99,432,321.95, 137,220,882.12 and 55,379,340.38

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Solution

The fourth proportional to 99,432,321.95, 137,220,882.12 and 55,379,340.38 is: 76,425,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,432,321.95 : 137,220,882.12 = 55,379,340.38 : x
  2. Step 2: Convert to fraction form
    99,432,321.95/137,220,882.12 = 55,379,340.38/x
  3. Step 3: Cross multiply
    99,432,321.95x = 137,220,882.12 × 55,379,340.38
  4. Step 4: Simplify right side
    99,432,321.95x = 7,599,201,937,204,335
  5. Step 5: Solve for x
    x = 7,599,201,937,204,335/99,432,321.95
  6. Step 6: Final answer
    x = 76,425,872.28

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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.