Home / 151,612,753.70-209,235,167.08-85,509,133.22

Finding the Fourth Proportional to 151,612,753.70, 209,235,167.08 and 85,509,133.22

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Solution

The fourth proportional to 151,612,753.70, 209,235,167.08 and 85,509,133.22 is: 118,007,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,612,753.70 : 209,235,167.08 = 85,509,133.22 : x
  2. Step 2: Convert to fraction form
    151,612,753.70/209,235,167.08 = 85,509,133.22/x
  3. Step 3: Cross multiply
    151,612,753.70x = 209,235,167.08 × 85,509,133.22
  4. Step 4: Simplify right side
    151,612,753.70x = 17,891,517,776,152,680
  5. Step 5: Solve for x
    x = 17,891,517,776,152,680/151,612,753.70
  6. Step 6: Final answer
    x = 118,007,999.59

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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.