Home / 649,315,763.15-896,031,747.40-351,951,620.85

Finding the Fourth Proportional to 649,315,763.15, 896,031,747.40 and 351,951,620.85

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Solution

The fourth proportional to 649,315,763.15, 896,031,747.40 and 351,951,620.85 is: 485,680,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,763.15 : 896,031,747.40 = 351,951,620.85 : x
  2. Step 2: Convert to fraction form
    649,315,763.15/896,031,747.40 = 351,951,620.85/x
  3. Step 3: Cross multiply
    649,315,763.15x = 896,031,747.40 × 351,951,620.85
  4. Step 4: Simplify right side
    649,315,763.15x = 315,359,825,824,247,872
  5. Step 5: Solve for x
    x = 315,359,825,824,247,872/649,315,763.15
  6. Step 6: Final answer
    x = 485,680,224.82

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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.