Home / 649,315,830.95-896,031,840.51-351,951,688.45

Finding the Fourth Proportional to 649,315,830.95, 896,031,840.51 and 351,951,688.45

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Solution

The fourth proportional to 649,315,830.95, 896,031,840.51 and 351,951,688.45 is: 485,680,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,830.95 : 896,031,840.51 = 351,951,688.45 : x
  2. Step 2: Convert to fraction form
    649,315,830.95/896,031,840.51 = 351,951,688.45/x
  3. Step 3: Cross multiply
    649,315,830.95x = 896,031,840.51 × 351,951,688.45
  4. Step 4: Simplify right side
    649,315,830.95x = 315,359,919,170,215,488
  5. Step 5: Solve for x
    x = 315,359,919,170,215,488/649,315,830.95
  6. Step 6: Final answer
    x = 485,680,317.87

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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.