Home / 392,839,979.53-542,132,259.11-214,233,612.88

Finding the Fourth Proportional to 392,839,979.53, 542,132,259.11 and 214,233,612.88

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Solution

The fourth proportional to 392,839,979.53, 542,132,259.11 and 214,233,612.88 is: 295,649,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,839,979.53 : 542,132,259.11 = 214,233,612.88 : x
  2. Step 2: Convert to fraction form
    392,839,979.53/542,132,259.11 = 214,233,612.88/x
  3. Step 3: Cross multiply
    392,839,979.53x = 542,132,259.11 × 214,233,612.88
  4. Step 4: Simplify right side
    392,839,979.53x = 116,142,952,527,931,600
  5. Step 5: Solve for x
    x = 116,142,952,527,931,600/392,839,979.53
  6. Step 6: Final answer
    x = 295,649,522.91

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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.