Home / 72,588,363.60-108,882,545.40-67,045,630.80

Finding the Fourth Proportional to 72,588,363.60, 108,882,545.40 and 67,045,630.80

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Solution

The fourth proportional to 72,588,363.60, 108,882,545.40 and 67,045,630.80 is: 100,568,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,588,363.60 : 108,882,545.40 = 67,045,630.80 : x
  2. Step 2: Convert to fraction form
    72,588,363.60/108,882,545.40 = 67,045,630.80/x
  3. Step 3: Cross multiply
    72,588,363.60x = 108,882,545.40 × 67,045,630.80
  4. Step 4: Simplify right side
    72,588,363.60x = 7,300,098,939,452,638
  5. Step 5: Solve for x
    x = 7,300,098,939,452,638/72,588,363.60
  6. Step 6: Final answer
    x = 100,568,446.20

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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.