Home / 91,044,096.90-136,566,145.35-80,521,565.10

Finding the Fourth Proportional to 91,044,096.90, 136,566,145.35 and 80,521,565.10

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Solution

The fourth proportional to 91,044,096.90, 136,566,145.35 and 80,521,565.10 is: 120,782,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,044,096.90 : 136,566,145.35 = 80,521,565.10 : x
  2. Step 2: Convert to fraction form
    91,044,096.90/136,566,145.35 = 80,521,565.10/x
  3. Step 3: Cross multiply
    91,044,096.90x = 136,566,145.35 × 80,521,565.10
  4. Step 4: Simplify right side
    91,044,096.90x = 10,996,519,763,256,086
  5. Step 5: Solve for x
    x = 10,996,519,763,256,086/91,044,096.90
  6. Step 6: Final answer
    x = 120,782,347.65

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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.