Home / 20,860,116.70-31,290,175.05-13,675,821.70

Finding the Fourth Proportional to 20,860,116.70, 31,290,175.05 and 13,675,821.70

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Solution

The fourth proportional to 20,860,116.70, 31,290,175.05 and 13,675,821.70 is: 20,513,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,116.70 : 31,290,175.05 = 13,675,821.70 : x
  2. Step 2: Convert to fraction form
    20,860,116.70/31,290,175.05 = 13,675,821.70/x
  3. Step 3: Cross multiply
    20,860,116.70x = 31,290,175.05 × 13,675,821.70
  4. Step 4: Simplify right side
    20,860,116.70x = 427,918,854,945,588.56
  5. Step 5: Solve for x
    x = 427,918,854,945,588.56/20,860,116.70
  6. Step 6: Final answer
    x = 20,513,732.55

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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.