Home / 67,143,057.27-100,708,816.32-40,875,074.78

Finding the Fourth Proportional to 67,143,057.27, 100,708,816.32 and 40,875,074.78

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Solution

The fourth proportional to 67,143,057.27, 100,708,816.32 and 40,875,074.78 is: 61,309,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143,057.27 : 100,708,816.32 = 40,875,074.78 : x
  2. Step 2: Convert to fraction form
    67,143,057.27/100,708,816.32 = 40,875,074.78/x
  3. Step 3: Cross multiply
    67,143,057.27x = 100,708,816.32 × 40,875,074.78
  4. Step 4: Simplify right side
    67,143,057.27x = 4,116,480,397,581,740
  5. Step 5: Solve for x
    x = 4,116,480,397,581,740/67,143,057.27
  6. Step 6: Final answer
    x = 61,309,099.78

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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.