Home / 285,428,474.04-393,902,121.84-159,982,988.52

Finding the Fourth Proportional to 285,428,474.04, 393,902,121.84 and 159,982,988.52

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Solution

The fourth proportional to 285,428,474.04, 393,902,121.84 and 159,982,988.52 is: 220,782,593.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,428,474.04 : 393,902,121.84 = 159,982,988.52 : x
  2. Step 2: Convert to fraction form
    285,428,474.04/393,902,121.84 = 159,982,988.52/x
  3. Step 3: Cross multiply
    285,428,474.04x = 393,902,121.84 × 159,982,988.52
  4. Step 4: Simplify right side
    285,428,474.04x = 63,017,638,636,332,360
  5. Step 5: Solve for x
    x = 63,017,638,636,332,360/285,428,474.04
  6. Step 6: Final answer
    x = 220,782,593.08

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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.