Home / 21,173,331.60-31,759,997.40-21,013,899.30

Finding the Fourth Proportional to 21,173,331.60, 31,759,997.40 and 21,013,899.30

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Solution

The fourth proportional to 21,173,331.60, 31,759,997.40 and 21,013,899.30 is: 31,520,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,331.60 : 31,759,997.40 = 21,013,899.30 : x
  2. Step 2: Convert to fraction form
    21,173,331.60/31,759,997.40 = 21,013,899.30/x
  3. Step 3: Cross multiply
    21,173,331.60x = 31,759,997.40 × 21,013,899.30
  4. Step 4: Simplify right side
    21,173,331.60x = 667,401,387,131,861.75
  5. Step 5: Solve for x
    x = 667,401,387,131,861.75/21,173,331.60
  6. Step 6: Final answer
    x = 31,520,848.95

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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.