Home / 627,654,340.10-865,802,307.21-392,296,541.06

Finding the Fourth Proportional to 627,654,340.10, 865,802,307.21 and 392,296,541.06

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Solution

The fourth proportional to 627,654,340.10, 865,802,307.21 and 392,296,541.06 is: 541,143,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,654,340.10 : 865,802,307.21 = 392,296,541.06 : x
  2. Step 2: Convert to fraction form
    627,654,340.10/865,802,307.21 = 392,296,541.06/x
  3. Step 3: Cross multiply
    627,654,340.10x = 865,802,307.21 × 392,296,541.06
  4. Step 4: Simplify right side
    627,654,340.10x = 339,651,250,355,921,536
  5. Step 5: Solve for x
    x = 339,651,250,355,921,536/627,654,340.10
  6. Step 6: Final answer
    x = 541,143,793.10

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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.