Home / 71,779,227.10-107,668,840.65-66,236,494.30

Finding the Fourth Proportional to 71,779,227.10, 107,668,840.65 and 66,236,494.30

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Solution

The fourth proportional to 71,779,227.10, 107,668,840.65 and 66,236,494.30 is: 99,354,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,779,227.10 : 107,668,840.65 = 66,236,494.30 : x
  2. Step 2: Convert to fraction form
    71,779,227.10/107,668,840.65 = 66,236,494.30/x
  3. Step 3: Cross multiply
    71,779,227.10x = 107,668,840.65 × 66,236,494.30
  4. Step 4: Simplify right side
    71,779,227.10x = 7,131,606,550,001,333
  5. Step 5: Solve for x
    x = 7,131,606,550,001,333/71,779,227.10
  6. Step 6: Final answer
    x = 99,354,741.45

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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.