Home / 13,902,937.20-20,854,405.80-12,895,167.60

Finding the Fourth Proportional to 13,902,937.20, 20,854,405.80 and 12,895,167.60

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Solution

The fourth proportional to 13,902,937.20, 20,854,405.80 and 12,895,167.60 is: 19,342,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,937.20 : 20,854,405.80 = 12,895,167.60 : x
  2. Step 2: Convert to fraction form
    13,902,937.20/20,854,405.80 = 12,895,167.60/x
  3. Step 3: Cross multiply
    13,902,937.20x = 20,854,405.80 × 12,895,167.60
  4. Step 4: Simplify right side
    13,902,937.20x = 268,921,057,989,412.09
  5. Step 5: Solve for x
    x = 268,921,057,989,412.09/13,902,937.20
  6. Step 6: Final answer
    x = 19,342,751.40

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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.