Home / 516,228,827.75-712,386,812.75-281,281,418.85

Finding the Fourth Proportional to 516,228,827.75, 712,386,812.75 and 281,281,418.85

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Solution

The fourth proportional to 516,228,827.75, 712,386,812.75 and 281,281,418.85 is: 388,163,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,827.75 : 712,386,812.75 = 281,281,418.85 : x
  2. Step 2: Convert to fraction form
    516,228,827.75/712,386,812.75 = 281,281,418.85/x
  3. Step 3: Cross multiply
    516,228,827.75x = 712,386,812.75 × 281,281,418.85
  4. Step 4: Simplify right side
    516,228,827.75x = 200,381,173,458,942,880
  5. Step 5: Solve for x
    x = 200,381,173,458,942,880/516,228,827.75
  6. Step 6: Final answer
    x = 388,163,470.71

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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.