Home / 87,654,409.92-120,969,776.16-50,496,171.84

Finding the Fourth Proportional to 87,654,409.92, 120,969,776.16 and 50,496,171.84

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Solution

The fourth proportional to 87,654,409.92, 120,969,776.16 and 50,496,171.84 is: 69,688,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654,409.92 : 120,969,776.16 = 50,496,171.84 : x
  2. Step 2: Convert to fraction form
    87,654,409.92/120,969,776.16 = 50,496,171.84/x
  3. Step 3: Cross multiply
    87,654,409.92x = 120,969,776.16 × 50,496,171.84
  4. Step 4: Simplify right side
    87,654,409.92x = 6,108,510,604,421,696
  5. Step 5: Solve for x
    x = 6,108,510,604,421,696/87,654,409.92
  6. Step 6: Final answer
    x = 69,688,571.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.