Home / 639,124,157.55-957,838,743.05-328,219,213.71

Finding the Fourth Proportional to 639,124,157.55, 957,838,743.05 and 328,219,213.71

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Solution

The fourth proportional to 639,124,157.55, 957,838,743.05 and 328,219,213.71 is: 491,893,594.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,124,157.55 : 957,838,743.05 = 328,219,213.71 : x
  2. Step 2: Convert to fraction form
    639,124,157.55/957,838,743.05 = 328,219,213.71/x
  3. Step 3: Cross multiply
    639,124,157.55x = 957,838,743.05 × 328,219,213.71
  4. Step 4: Simplify right side
    639,124,157.55x = 314,381,079,103,204,608
  5. Step 5: Solve for x
    x = 314,381,079,103,204,608/639,124,157.55
  6. Step 6: Final answer
    x = 491,893,594.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.