Home / 158,086,962-218,160,007.68-85,735,218

Finding the Fourth Proportional to 158,086,962, 218,160,007.68 and 85,735,218

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Solution

The fourth proportional to 158,086,962, 218,160,007.68 and 85,735,218 is: 118,314,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,086,962 : 218,160,007.68 = 85,735,218 : x
  2. Step 2: Convert to fraction form
    158,086,962/218,160,007.68 = 85,735,218/x
  3. Step 3: Cross multiply
    158,086,962x = 218,160,007.68 × 85,735,218
  4. Step 4: Simplify right side
    158,086,962x = 18,703,995,817,326,476
  5. Step 5: Solve for x
    x = 18,703,995,817,326,476/158,086,962
  6. Step 6: Final answer
    x = 118,314,600.91

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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.