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Finding the Fourth Proportional to 25,900,549.60, 38,861,710.80 and 13,919,288.80

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Solution

The fourth proportional to 25,900,549.60, 38,861,710.80 and 13,919,288.80 is: 20,884,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900,549.60 : 38,861,710.80 = 13,919,288.80 : x
  2. Step 2: Convert to fraction form
    25,900,549.60/38,861,710.80 = 13,919,288.80/x
  3. Step 3: Cross multiply
    25,900,549.60x = 38,861,710.80 × 13,919,288.80
  4. Step 4: Simplify right side
    25,900,549.60x = 540,927,375,887,279
  5. Step 5: Solve for x
    x = 540,927,375,887,279/25,900,549.60
  6. Step 6: Final answer
    x = 20,884,783.69

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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.