Home / 20,860,114.70-31,290,172.05-13,675,819.70

Finding the Fourth Proportional to 20,860,114.70, 31,290,172.05 and 13,675,819.70

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Solution

The fourth proportional to 20,860,114.70, 31,290,172.05 and 13,675,819.70 is: 20,513,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,114.70 : 31,290,172.05 = 13,675,819.70 : x
  2. Step 2: Convert to fraction form
    20,860,114.70/31,290,172.05 = 13,675,819.70/x
  3. Step 3: Cross multiply
    20,860,114.70x = 31,290,172.05 × 13,675,819.70
  4. Step 4: Simplify right side
    20,860,114.70x = 427,918,751,337,779.38
  5. Step 5: Solve for x
    x = 427,918,751,337,779.38/20,860,114.70
  6. Step 6: Final answer
    x = 20,513,729.55

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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.