Home / 431,676,295.20-647,372,725.20-159,011,632.80

Finding the Fourth Proportional to 431,676,295.20, 647,372,725.20 and 159,011,632.80

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Solution

The fourth proportional to 431,676,295.20, 647,372,725.20 and 159,011,632.80 is: 238,465,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,676,295.20 : 647,372,725.20 = 159,011,632.80 : x
  2. Step 2: Convert to fraction form
    431,676,295.20/647,372,725.20 = 159,011,632.80/x
  3. Step 3: Cross multiply
    431,676,295.20x = 647,372,725.20 × 159,011,632.80
  4. Step 4: Simplify right side
    431,676,295.20x = 102,939,794,064,237,728
  5. Step 5: Solve for x
    x = 102,939,794,064,237,728/431,676,295.20
  6. Step 6: Final answer
    x = 238,465,246.32

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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.