Home / 649,315,828.32-896,031,836.89-351,951,685.82

Finding the Fourth Proportional to 649,315,828.32, 896,031,836.89 and 351,951,685.82

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Solution

The fourth proportional to 649,315,828.32, 896,031,836.89 and 351,951,685.82 is: 485,680,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,828.32 : 896,031,836.89 = 351,951,685.82 : x
  2. Step 2: Convert to fraction form
    649,315,828.32/896,031,836.89 = 351,951,685.82/x
  3. Step 3: Cross multiply
    649,315,828.32x = 896,031,836.89 × 351,951,685.82
  4. Step 4: Simplify right side
    649,315,828.32x = 315,359,915,539,301,056
  5. Step 5: Solve for x
    x = 315,359,915,539,301,056/649,315,828.32
  6. Step 6: Final answer
    x = 485,680,314.24

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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.