Home / 217,092,763.32-325,703,041.07-78,916,192.43

Finding the Fourth Proportional to 217,092,763.32, 325,703,041.07 and 78,916,192.43

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Solution

The fourth proportional to 217,092,763.32, 325,703,041.07 and 78,916,192.43 is: 118,397,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,092,763.32 : 325,703,041.07 = 78,916,192.43 : x
  2. Step 2: Convert to fraction form
    217,092,763.32/325,703,041.07 = 78,916,192.43/x
  3. Step 3: Cross multiply
    217,092,763.32x = 325,703,041.07 × 78,916,192.43
  4. Step 4: Simplify right side
    217,092,763.32x = 25,703,243,863,302,052
  5. Step 5: Solve for x
    x = 25,703,243,863,302,052/217,092,763.32
  6. Step 6: Final answer
    x = 118,397,515.74

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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.