Home / 521,554,048.20-782,331,072.30-314,929,787.40

Finding the Fourth Proportional to 521,554,048.20, 782,331,072.30 and 314,929,787.40

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Solution

The fourth proportional to 521,554,048.20, 782,331,072.30 and 314,929,787.40 is: 472,394,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,554,048.20 : 782,331,072.30 = 314,929,787.40 : x
  2. Step 2: Convert to fraction form
    521,554,048.20/782,331,072.30 = 314,929,787.40/x
  3. Step 3: Cross multiply
    521,554,048.20x = 782,331,072.30 × 314,929,787.40
  4. Step 4: Simplify right side
    521,554,048.20x = 246,379,358,275,852,992
  5. Step 5: Solve for x
    x = 246,379,358,275,852,992/521,554,048.20
  6. Step 6: Final answer
    x = 472,394,681.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.