Home / 81,686,704.30-122,530,056.45-71,609,008.30

Finding the Fourth Proportional to 81,686,704.30, 122,530,056.45 and 71,609,008.30

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Solution

The fourth proportional to 81,686,704.30, 122,530,056.45 and 71,609,008.30 is: 107,413,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,686,704.30 : 122,530,056.45 = 71,609,008.30 : x
  2. Step 2: Convert to fraction form
    81,686,704.30/122,530,056.45 = 71,609,008.30/x
  3. Step 3: Cross multiply
    81,686,704.30x = 122,530,056.45 × 71,609,008.30
  4. Step 4: Simplify right side
    81,686,704.30x = 8,774,255,829,327,518
  5. Step 5: Solve for x
    x = 8,774,255,829,327,518/81,686,704.30
  6. Step 6: Final answer
    x = 107,413,512.45

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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.