Home / 13,739,781.60-20,609,672.40-6,937,336.80

Finding the Fourth Proportional to 13,739,781.60, 20,609,672.40 and 6,937,336.80

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Solution

The fourth proportional to 13,739,781.60, 20,609,672.40 and 6,937,336.80 is: 10,406,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739,781.60 : 20,609,672.40 = 6,937,336.80 : x
  2. Step 2: Convert to fraction form
    13,739,781.60/20,609,672.40 = 6,937,336.80/x
  3. Step 3: Cross multiply
    13,739,781.60x = 20,609,672.40 × 6,937,336.80
  4. Step 4: Simplify right side
    13,739,781.60x = 142,976,238,776,464.31
  5. Step 5: Solve for x
    x = 142,976,238,776,464.31/13,739,781.60
  6. Step 6: Final answer
    x = 10,406,005.20

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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.