Home / 431,676,288.20-647,372,714.70-159,011,625.80

Finding the Fourth Proportional to 431,676,288.20, 647,372,714.70 and 159,011,625.80

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Solution

The fourth proportional to 431,676,288.20, 647,372,714.70 and 159,011,625.80 is: 238,465,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,676,288.20 : 647,372,714.70 = 159,011,625.80 : x
  2. Step 2: Convert to fraction form
    431,676,288.20/647,372,714.70 = 159,011,625.80/x
  3. Step 3: Cross multiply
    431,676,288.20x = 647,372,714.70 × 159,011,625.80
  4. Step 4: Simplify right side
    431,676,288.20x = 102,939,787,863,006,576
  5. Step 5: Solve for x
    x = 102,939,787,863,006,576/431,676,288.20
  6. Step 6: Final answer
    x = 238,465,235.82

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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.