Home / 19,317,909.60-28,976,864.40-9,240,213.60

Finding the Fourth Proportional to 19,317,909.60, 28,976,864.40 and 9,240,213.60

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Solution

The fourth proportional to 19,317,909.60, 28,976,864.40 and 9,240,213.60 is: 13,860,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317,909.60 : 28,976,864.40 = 9,240,213.60 : x
  2. Step 2: Convert to fraction form
    19,317,909.60/28,976,864.40 = 9,240,213.60/x
  3. Step 3: Cross multiply
    19,317,909.60x = 28,976,864.40 × 9,240,213.60
  4. Step 4: Simplify right side
    19,317,909.60x = 267,752,416,514,235.81
  5. Step 5: Solve for x
    x = 267,752,416,514,235.81/19,317,909.60
  6. Step 6: Final answer
    x = 13,860,320.40

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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.