Home / 66,880,363.60-100,320,545.40-40,006,507.60

Finding the Fourth Proportional to 66,880,363.60, 100,320,545.40 and 40,006,507.60

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Solution

The fourth proportional to 66,880,363.60, 100,320,545.40 and 40,006,507.60 is: 60,009,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,880,363.60 : 100,320,545.40 = 40,006,507.60 : x
  2. Step 2: Convert to fraction form
    66,880,363.60/100,320,545.40 = 40,006,507.60/x
  3. Step 3: Cross multiply
    66,880,363.60x = 100,320,545.40 × 40,006,507.60
  4. Step 4: Simplify right side
    66,880,363.60x = 4,013,474,661,981,245.50
  5. Step 5: Solve for x
    x = 4,013,474,661,981,245.50/66,880,363.60
  6. Step 6: Final answer
    x = 60,009,761.40

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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.