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Finding the Fourth Proportional to 65,605,399.20, 98,408,098.80 and 29,213,719.20

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Solution

The fourth proportional to 65,605,399.20, 98,408,098.80 and 29,213,719.20 is: 43,820,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,605,399.20 : 98,408,098.80 = 29,213,719.20 : x
  2. Step 2: Convert to fraction form
    65,605,399.20/98,408,098.80 = 29,213,719.20/x
  3. Step 3: Cross multiply
    65,605,399.20x = 98,408,098.80 × 29,213,719.20
  4. Step 4: Simplify right side
    65,605,399.20x = 2,874,866,565,349,057
  5. Step 5: Solve for x
    x = 2,874,866,565,349,057/65,605,399.20
  6. Step 6: Final answer
    x = 43,820,578.80

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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.