Home / 516,228,832.12-712,386,818.78-281,281,423.23

Finding the Fourth Proportional to 516,228,832.12, 712,386,818.78 and 281,281,423.23

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Solution

The fourth proportional to 516,228,832.12, 712,386,818.78 and 281,281,423.23 is: 388,163,476.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,832.12 : 712,386,818.78 = 281,281,423.23 : x
  2. Step 2: Convert to fraction form
    516,228,832.12/712,386,818.78 = 281,281,423.23/x
  3. Step 3: Cross multiply
    516,228,832.12x = 712,386,818.78 × 281,281,423.23
  4. Step 4: Simplify right side
    516,228,832.12x = 200,381,178,275,324,096
  5. Step 5: Solve for x
    x = 200,381,178,275,324,096/516,228,832.12
  6. Step 6: Final answer
    x = 388,163,476.75

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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.