Home / 111,487,763.10-167,231,644.65-72,745,714.20

Finding the Fourth Proportional to 111,487,763.10, 167,231,644.65 and 72,745,714.20

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Solution

The fourth proportional to 111,487,763.10, 167,231,644.65 and 72,745,714.20 is: 109,118,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487,763.10 : 167,231,644.65 = 72,745,714.20 : x
  2. Step 2: Convert to fraction form
    111,487,763.10/167,231,644.65 = 72,745,714.20/x
  3. Step 3: Cross multiply
    111,487,763.10x = 167,231,644.65 × 72,745,714.20
  4. Step 4: Simplify right side
    111,487,763.10x = 12,165,385,426,904,860
  5. Step 5: Solve for x
    x = 12,165,385,426,904,860/111,487,763.10
  6. Step 6: Final answer
    x = 109,118,571.30

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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.