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Finding the Fourth Proportional to 71,115,796.40, 106,673,694.60 and 53,199,892.40

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Solution

The fourth proportional to 71,115,796.40, 106,673,694.60 and 53,199,892.40 is: 79,799,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,115,796.40 : 106,673,694.60 = 53,199,892.40 : x
  2. Step 2: Convert to fraction form
    71,115,796.40/106,673,694.60 = 53,199,892.40/x
  3. Step 3: Cross multiply
    71,115,796.40x = 106,673,694.60 × 53,199,892.40
  4. Step 4: Simplify right side
    71,115,796.40x = 5,675,029,074,630,461
  5. Step 5: Solve for x
    x = 5,675,029,074,630,461/71,115,796.40
  6. Step 6: Final answer
    x = 79,799,838.60

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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.