Home / 649,315,833.95-896,031,844.65-351,951,691.46

Finding the Fourth Proportional to 649,315,833.95, 896,031,844.65 and 351,951,691.46

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Solution

The fourth proportional to 649,315,833.95, 896,031,844.65 and 351,951,691.46 is: 485,680,322.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,833.95 : 896,031,844.65 = 351,951,691.46 : x
  2. Step 2: Convert to fraction form
    649,315,833.95/896,031,844.65 = 351,951,691.46/x
  3. Step 3: Cross multiply
    649,315,833.95x = 896,031,844.65 × 351,951,691.46
  4. Step 4: Simplify right side
    649,315,833.95x = 315,359,923,322,111,296
  5. Step 5: Solve for x
    x = 315,359,923,322,111,296/649,315,833.95
  6. Step 6: Final answer
    x = 485,680,322.02

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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.