Home / 20,730,014.20-28,616,593.96-13,391,426.34

Finding the Fourth Proportional to 20,730,014.20, 28,616,593.96 and 13,391,426.34

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Solution

The fourth proportional to 20,730,014.20, 28,616,593.96 and 13,391,426.34 is: 18,486,094.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,014.20 : 28,616,593.96 = 13,391,426.34 : x
  2. Step 2: Convert to fraction form
    20,730,014.20/28,616,593.96 = 13,391,426.34/x
  3. Step 3: Cross multiply
    20,730,014.20x = 28,616,593.96 × 13,391,426.34
  4. Step 4: Simplify right side
    20,730,014.20x = 383,217,010,117,028.94
  5. Step 5: Solve for x
    x = 383,217,010,117,028.94/20,730,014.20
  6. Step 6: Final answer
    x = 18,486,094.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.