Home / 516,552,963.68-712,836,282.20-290,491,880.31

Finding the Fourth Proportional to 516,552,963.68, 712,836,282.20 and 290,491,880.31

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Solution

The fourth proportional to 516,552,963.68, 712,836,282.20 and 290,491,880.31 is: 400,874,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,552,963.68 : 712,836,282.20 = 290,491,880.31 : x
  2. Step 2: Convert to fraction form
    516,552,963.68/712,836,282.20 = 290,491,880.31/x
  3. Step 3: Cross multiply
    516,552,963.68x = 712,836,282.20 × 290,491,880.31
  4. Step 4: Simplify right side
    516,552,963.68x = 207,073,151,968,015,328
  5. Step 5: Solve for x
    x = 207,073,151,968,015,328/516,552,963.68
  6. Step 6: Final answer
    x = 400,874,966.42

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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.