Home / 153,251,369.53-229,948,798.85-66,978,566.20

Finding the Fourth Proportional to 153,251,369.53, 229,948,798.85 and 66,978,566.20

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Solution

The fourth proportional to 153,251,369.53, 229,948,798.85 and 66,978,566.20 is: 100,499,205.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,251,369.53 : 229,948,798.85 = 66,978,566.20 : x
  2. Step 2: Convert to fraction form
    153,251,369.53/229,948,798.85 = 66,978,566.20/x
  3. Step 3: Cross multiply
    153,251,369.53x = 229,948,798.85 × 66,978,566.20
  4. Step 4: Simplify right side
    153,251,369.53x = 15,401,640,846,385,210
  5. Step 5: Solve for x
    x = 15,401,640,846,385,210/153,251,369.53
  6. Step 6: Final answer
    x = 100,499,205.28

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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.