Home / 625,590,906.30-938,386,359.45-165,575,576.70

Finding the Fourth Proportional to 625,590,906.30, 938,386,359.45 and 165,575,576.70

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Solution

The fourth proportional to 625,590,906.30, 938,386,359.45 and 165,575,576.70 is: 248,363,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,590,906.30 : 938,386,359.45 = 165,575,576.70 : x
  2. Step 2: Convert to fraction form
    625,590,906.30/938,386,359.45 = 165,575,576.70/x
  3. Step 3: Cross multiply
    625,590,906.30x = 938,386,359.45 × 165,575,576.70
  4. Step 4: Simplify right side
    625,590,906.30x = 155,373,862,633,347,232
  5. Step 5: Solve for x
    x = 155,373,862,633,347,232/625,590,906.30
  6. Step 6: Final answer
    x = 248,363,365.05

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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.