Home / 217,092,764.07-325,703,042.19-78,916,193.18

Finding the Fourth Proportional to 217,092,764.07, 325,703,042.19 and 78,916,193.18

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Solution

The fourth proportional to 217,092,764.07, 325,703,042.19 and 78,916,193.18 is: 118,397,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,092,764.07 : 325,703,042.19 = 78,916,193.18 : x
  2. Step 2: Convert to fraction form
    217,092,764.07/325,703,042.19 = 78,916,193.18/x
  3. Step 3: Cross multiply
    217,092,764.07x = 325,703,042.19 × 78,916,193.18
  4. Step 4: Simplify right side
    217,092,764.07x = 25,703,244,196,779,732
  5. Step 5: Solve for x
    x = 25,703,244,196,779,732/217,092,764.07
  6. Step 6: Final answer
    x = 118,397,516.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.