Home / 649,315,818.32-896,031,823.21-351,951,675.80

Finding the Fourth Proportional to 649,315,818.32, 896,031,823.21 and 351,951,675.80

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Solution

The fourth proportional to 649,315,818.32, 896,031,823.21 and 351,951,675.80 is: 485,680,300.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,818.32 : 896,031,823.21 = 351,951,675.80 : x
  2. Step 2: Convert to fraction form
    649,315,818.32/896,031,823.21 = 351,951,675.80/x
  3. Step 3: Cross multiply
    649,315,818.32x = 896,031,823.21 × 351,951,675.80
  4. Step 4: Simplify right side
    649,315,818.32x = 315,359,901,743,528,832
  5. Step 5: Solve for x
    x = 315,359,901,743,528,832/649,315,818.32
  6. Step 6: Final answer
    x = 485,680,300.47

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1.5x scale

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.