Home / 157,882,965.72-217,867,432.08-91,798,775.58

Finding the Fourth Proportional to 157,882,965.72, 217,867,432.08 and 91,798,775.58

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Solution

The fourth proportional to 157,882,965.72, 217,867,432.08 and 91,798,775.58 is: 126,675,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,882,965.72 : 217,867,432.08 = 91,798,775.58 : x
  2. Step 2: Convert to fraction form
    157,882,965.72/217,867,432.08 = 91,798,775.58/x
  3. Step 3: Cross multiply
    157,882,965.72x = 217,867,432.08 × 91,798,775.58
  4. Step 4: Simplify right side
    157,882,965.72x = 19,999,963,503,702,812
  5. Step 5: Solve for x
    x = 19,999,963,503,702,812/157,882,965.72
  6. Step 6: Final answer
    x = 126,675,879.27

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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.