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Finding the Fourth Proportional to 66,334,235.40, 99,501,353.10 and 43,375,984.20

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Solution

The fourth proportional to 66,334,235.40, 99,501,353.10 and 43,375,984.20 is: 65,063,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,334,235.40 : 99,501,353.10 = 43,375,984.20 : x
  2. Step 2: Convert to fraction form
    66,334,235.40/99,501,353.10 = 43,375,984.20/x
  3. Step 3: Cross multiply
    66,334,235.40x = 99,501,353.10 × 43,375,984.20
  4. Step 4: Simplify right side
    66,334,235.40x = 4,315,969,119,944,221
  5. Step 5: Solve for x
    x = 4,315,969,119,944,221/66,334,235.40
  6. Step 6: Final answer
    x = 65,063,976.30

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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.