Home / 38,300,781.60-57,456,421.20-12,739,125.60

Finding the Fourth Proportional to 38,300,781.60, 57,456,421.20 and 12,739,125.60

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Solution

The fourth proportional to 38,300,781.60, 57,456,421.20 and 12,739,125.60 is: 19,110,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,300,781.60 : 57,456,421.20 = 12,739,125.60 : x
  2. Step 2: Convert to fraction form
    38,300,781.60/57,456,421.20 = 12,739,125.60/x
  3. Step 3: Cross multiply
    38,300,781.60x = 57,456,421.20 × 12,739,125.60
  4. Step 4: Simplify right side
    38,300,781.60x = 731,944,566,193,302.75
  5. Step 5: Solve for x
    x = 731,944,566,193,302.75/38,300,781.60
  6. Step 6: Final answer
    x = 19,110,434.19

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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.