Home / 649,315,731.63-896,031,703.94-351,951,589.30

Finding the Fourth Proportional to 649,315,731.63, 896,031,703.94 and 351,951,589.30

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Solution

The fourth proportional to 649,315,731.63, 896,031,703.94 and 351,951,589.30 is: 485,680,181.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,731.63 : 896,031,703.94 = 351,951,589.30 : x
  2. Step 2: Convert to fraction form
    649,315,731.63/896,031,703.94 = 351,951,589.30/x
  3. Step 3: Cross multiply
    649,315,731.63x = 896,031,703.94 × 351,951,589.30
  4. Step 4: Simplify right side
    649,315,731.63x = 315,359,782,266,600,128
  5. Step 5: Solve for x
    x = 315,359,782,266,600,128/649,315,731.63
  6. Step 6: Final answer
    x = 485,680,181.31

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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.