Home / 131,471,380.90-197,207,071.35-80,453,044.90

Finding the Fourth Proportional to 131,471,380.90, 197,207,071.35 and 80,453,044.90

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Solution

The fourth proportional to 131,471,380.90, 197,207,071.35 and 80,453,044.90 is: 120,679,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,380.90 : 197,207,071.35 = 80,453,044.90 : x
  2. Step 2: Convert to fraction form
    131,471,380.90/197,207,071.35 = 80,453,044.90/x
  3. Step 3: Cross multiply
    131,471,380.90x = 197,207,071.35 × 80,453,044.90
  4. Step 4: Simplify right side
    131,471,380.90x = 15,865,909,365,919,054
  5. Step 5: Solve for x
    x = 15,865,909,365,919,054/131,471,380.90
  6. Step 6: Final answer
    x = 120,679,567.35

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Double scale
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Similar ratio
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1.5x scale

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.