Home / 42,639,702.40-63,964,033.98-13,888,076.86

Finding the Fourth Proportional to 42,639,702.40, 63,964,033.98 and 13,888,076.86

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Solution

The fourth proportional to 42,639,702.40, 63,964,033.98 and 13,888,076.86 is: 20,833,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639,702.40 : 63,964,033.98 = 13,888,076.86 : x
  2. Step 2: Convert to fraction form
    42,639,702.40/63,964,033.98 = 13,888,076.86/x
  3. Step 3: Cross multiply
    42,639,702.40x = 63,964,033.98 × 13,888,076.86
  4. Step 4: Simplify right side
    42,639,702.40x = 888,337,420,189,891.62
  5. Step 5: Solve for x
    x = 888,337,420,189,891.62/42,639,702.40
  6. Step 6: Final answer
    x = 20,833,574.58

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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.