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Finding the Fourth Proportional to 66,462,408.80, 99,693,613.20 and 30,630,600.80

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Solution

The fourth proportional to 66,462,408.80, 99,693,613.20 and 30,630,600.80 is: 45,945,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,462,408.80 : 99,693,613.20 = 30,630,600.80 : x
  2. Step 2: Convert to fraction form
    66,462,408.80/99,693,613.20 = 30,630,600.80/x
  3. Step 3: Cross multiply
    66,462,408.80x = 99,693,613.20 × 30,630,600.80
  4. Step 4: Simplify right side
    66,462,408.80x = 3,053,675,268,238,810.50
  5. Step 5: Solve for x
    x = 3,053,675,268,238,810.50/66,462,408.80
  6. Step 6: Final answer
    x = 45,945,901.20

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Double scale
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Similar ratio
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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.