Home / 86,219,939.20-129,379,675.20-32,372,694.40

Finding the Fourth Proportional to 86,219,939.20, 129,379,675.20 and 32,372,694.40

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Solution

The fourth proportional to 86,219,939.20, 129,379,675.20 and 32,372,694.40 is: 48,577,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,219,939.20 : 129,379,675.20 = 32,372,694.40 : x
  2. Step 2: Convert to fraction form
    86,219,939.20/129,379,675.20 = 32,372,694.40/x
  3. Step 3: Cross multiply
    86,219,939.20x = 129,379,675.20 × 32,372,694.40
  4. Step 4: Simplify right side
    86,219,939.20x = 4,188,368,686,820,859
  5. Step 5: Solve for x
    x = 4,188,368,686,820,859/86,219,939.20
  6. Step 6: Final answer
    x = 48,577,727.21

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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.