Home / 516,228,829.87-712,386,815.68-281,281,420.98

Finding the Fourth Proportional to 516,228,829.87, 712,386,815.68 and 281,281,420.98

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Solution

The fourth proportional to 516,228,829.87, 712,386,815.68 and 281,281,420.98 is: 388,163,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,228,829.87 : 712,386,815.68 = 281,281,420.98 : x
  2. Step 2: Convert to fraction form
    516,228,829.87/712,386,815.68 = 281,281,420.98/x
  3. Step 3: Cross multiply
    516,228,829.87x = 712,386,815.68 × 281,281,420.98
  4. Step 4: Simplify right side
    516,228,829.87x = 200,381,175,796,919,392
  5. Step 5: Solve for x
    x = 200,381,175,796,919,392/516,228,829.87
  6. Step 6: Final answer
    x = 388,163,473.64

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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.