Home / 69,921,960.12-96,461,693.92-66,680,170

Finding the Fourth Proportional to 69,921,960.12, 96,461,693.92 and 66,680,170

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Solution

The fourth proportional to 69,921,960.12, 96,461,693.92 and 66,680,170 is: 91,989,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921,960.12 : 96,461,693.92 = 66,680,170 : x
  2. Step 2: Convert to fraction form
    69,921,960.12/96,461,693.92 = 66,680,170/x
  3. Step 3: Cross multiply
    69,921,960.12x = 96,461,693.92 × 66,680,170
  4. Step 4: Simplify right side
    69,921,960.12x = 6,432,082,149,073,567
  5. Step 5: Solve for x
    x = 6,432,082,149,073,567/69,921,960.12
  6. Step 6: Final answer
    x = 91,989,442.77

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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.