Home / 115,320,144.80-172,980,217.20-38,617,680.80

Finding the Fourth Proportional to 115,320,144.80, 172,980,217.20 and 38,617,680.80

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Solution

The fourth proportional to 115,320,144.80, 172,980,217.20 and 38,617,680.80 is: 57,926,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,320,144.80 : 172,980,217.20 = 38,617,680.80 : x
  2. Step 2: Convert to fraction form
    115,320,144.80/172,980,217.20 = 38,617,680.80/x
  3. Step 3: Cross multiply
    115,320,144.80x = 172,980,217.20 × 38,617,680.80
  4. Step 4: Simplify right side
    115,320,144.80x = 6,680,094,812,544,269
  5. Step 5: Solve for x
    x = 6,680,094,812,544,269/115,320,144.80
  6. Step 6: Final answer
    x = 57,926,521.20

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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.