Home / 20,970,328.97-28,924,146.90-13,997,490.90

Finding the Fourth Proportional to 20,970,328.97, 28,924,146.90 and 13,997,490.90

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Solution

The fourth proportional to 20,970,328.97, 28,924,146.90 and 13,997,490.90 is: 19,306,587.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,328.97 : 28,924,146.90 = 13,997,490.90 : x
  2. Step 2: Convert to fraction form
    20,970,328.97/28,924,146.90 = 13,997,490.90/x
  3. Step 3: Cross multiply
    20,970,328.97x = 28,924,146.90 × 13,997,490.90
  4. Step 4: Simplify right side
    20,970,328.97x = 404,865,483,023,013.19
  5. Step 5: Solve for x
    x = 404,865,483,023,013.19/20,970,328.97
  6. Step 6: Final answer
    x = 19,306,587.12

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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.