Home / 431,676,290.20-647,372,717.70-159,011,627.80

Finding the Fourth Proportional to 431,676,290.20, 647,372,717.70 and 159,011,627.80

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Solution

The fourth proportional to 431,676,290.20, 647,372,717.70 and 159,011,627.80 is: 238,465,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,676,290.20 : 647,372,717.70 = 159,011,627.80 : x
  2. Step 2: Convert to fraction form
    431,676,290.20/647,372,717.70 = 159,011,627.80/x
  3. Step 3: Cross multiply
    431,676,290.20x = 647,372,717.70 × 159,011,627.80
  4. Step 4: Simplify right side
    431,676,290.20x = 102,939,789,634,786,880
  5. Step 5: Solve for x
    x = 102,939,789,634,786,880/431,676,290.20
  6. Step 6: Final answer
    x = 238,465,238.82

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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.