Home / 136,275,102.72-188,062,487.04-74,398,049.28

Finding the Fourth Proportional to 136,275,102.72, 188,062,487.04 and 74,398,049.28

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Solution

The fourth proportional to 136,275,102.72, 188,062,487.04 and 74,398,049.28 is: 102,670,861.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,275,102.72 : 188,062,487.04 = 74,398,049.28 : x
  2. Step 2: Convert to fraction form
    136,275,102.72/188,062,487.04 = 74,398,049.28/x
  3. Step 3: Cross multiply
    136,275,102.72x = 188,062,487.04 × 74,398,049.28
  4. Step 4: Simplify right side
    136,275,102.72x = 13,991,482,178,521,280
  5. Step 5: Solve for x
    x = 13,991,482,178,521,280/136,275,102.72
  6. Step 6: Final answer
    x = 102,670,861.36

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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.