Home / 136,207,046.28-187,969,693.70-74,331,370.60

Finding the Fourth Proportional to 136,207,046.28, 187,969,693.70 and 74,331,370.60

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Solution

The fourth proportional to 136,207,046.28, 187,969,693.70 and 74,331,370.60 is: 102,579,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,207,046.28 : 187,969,693.70 = 74,331,370.60 : x
  2. Step 2: Convert to fraction form
    136,207,046.28/187,969,693.70 = 74,331,370.60/x
  3. Step 3: Cross multiply
    136,207,046.28x = 187,969,693.70 × 74,331,370.60
  4. Step 4: Simplify right side
    136,207,046.28x = 13,972,044,963,983,184
  5. Step 5: Solve for x
    x = 13,972,044,963,983,184/136,207,046.28
  6. Step 6: Final answer
    x = 102,579,457.86

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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.