Home / 412,972,975.22-619,466,031.38-229,904,045.78

Finding the Fourth Proportional to 412,972,975.22, 619,466,031.38 and 229,904,045.78

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Solution

The fourth proportional to 412,972,975.22, 619,466,031.38 and 229,904,045.78 is: 344,859,725.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,972,975.22 : 619,466,031.38 = 229,904,045.78 : x
  2. Step 2: Convert to fraction form
    412,972,975.22/619,466,031.38 = 229,904,045.78/x
  3. Step 3: Cross multiply
    412,972,975.22x = 619,466,031.38 × 229,904,045.78
  4. Step 4: Simplify right side
    412,972,975.22x = 142,417,746,837,542,432
  5. Step 5: Solve for x
    x = 142,417,746,837,542,432/412,972,975.22
  6. Step 6: Final answer
    x = 344,859,725.41

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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.