Home / 28,275,925.60-42,385,894.80-13,887,215.20

Finding the Fourth Proportional to 28,275,925.60, 42,385,894.80 and 13,887,215.20

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Solution

The fourth proportional to 28,275,925.60, 42,385,894.80 and 13,887,215.20 is: 20,817,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275,925.60 : 42,385,894.80 = 13,887,215.20 : x
  2. Step 2: Convert to fraction form
    28,275,925.60/42,385,894.80 = 13,887,215.20/x
  3. Step 3: Cross multiply
    28,275,925.60x = 42,385,894.80 × 13,887,215.20
  4. Step 4: Simplify right side
    28,275,925.60x = 588,622,042,532,160.88
  5. Step 5: Solve for x
    x = 588,622,042,532,160.88/28,275,925.60
  6. Step 6: Final answer
    x = 20,817,074.24

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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.