Home / 516,228,829.62-712,386,815.33-281,281,420.73

Finding the Fourth Proportional to 516,228,829.62, 712,386,815.33 and 281,281,420.73

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Solution

The fourth proportional to 516,228,829.62, 712,386,815.33 and 281,281,420.73 is: 388,163,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,829.62 : 712,386,815.33 = 281,281,420.73 : x
  2. Step 2: Convert to fraction form
    516,228,829.62/712,386,815.33 = 281,281,420.73/x
  3. Step 3: Cross multiply
    516,228,829.62x = 712,386,815.33 × 281,281,420.73
  4. Step 4: Simplify right side
    516,228,829.62x = 200,381,175,522,483,840
  5. Step 5: Solve for x
    x = 200,381,175,522,483,840/516,228,829.62
  6. Step 6: Final answer
    x = 388,163,473.30

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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.