Home / 66,813,888.54-100,227,275.57-20,743,387.86

Finding the Fourth Proportional to 66,813,888.54, 100,227,275.57 and 20,743,387.86

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Solution

The fourth proportional to 66,813,888.54, 100,227,275.57 and 20,743,387.86 is: 31,117,082.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,813,888.54 : 100,227,275.57 = 20,743,387.86 : x
  2. Step 2: Convert to fraction form
    66,813,888.54/100,227,275.57 = 20,743,387.86/x
  3. Step 3: Cross multiply
    66,813,888.54x = 100,227,275.57 × 20,743,387.86
  4. Step 4: Simplify right side
    66,813,888.54x = 2,079,053,251,299,612.25
  5. Step 5: Solve for x
    x = 2,079,053,251,299,612.25/66,813,888.54
  6. Step 6: Final answer
    x = 31,117,082.04

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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.