Home / 503,456,116.19-694,776,638.26-288,909,723.65

Finding the Fourth Proportional to 503,456,116.19, 694,776,638.26 and 288,909,723.65

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Solution

The fourth proportional to 503,456,116.19, 694,776,638.26 and 288,909,723.65 is: 398,699,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,456,116.19 : 694,776,638.26 = 288,909,723.65 : x
  2. Step 2: Convert to fraction form
    503,456,116.19/694,776,638.26 = 288,909,723.65/x
  3. Step 3: Cross multiply
    503,456,116.19x = 694,776,638.26 × 288,909,723.65
  4. Step 4: Simplify right side
    503,456,116.19x = 200,727,726,553,976,448
  5. Step 5: Solve for x
    x = 200,727,726,553,976,448/503,456,116.19
  6. Step 6: Final answer
    x = 398,699,549.18

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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.