Home / 426,352,337.56-639,589,512.20-131,272,424.46

Finding the Fourth Proportional to 426,352,337.56, 639,589,512.20 and 131,272,424.46

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Solution

The fourth proportional to 426,352,337.56, 639,589,512.20 and 131,272,424.46 is: 196,927,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,352,337.56 : 639,589,512.20 = 131,272,424.46 : x
  2. Step 2: Convert to fraction form
    426,352,337.56/639,589,512.20 = 131,272,424.46/x
  3. Step 3: Cross multiply
    426,352,337.56x = 639,589,512.20 × 131,272,424.46
  4. Step 4: Simplify right side
    426,352,337.56x = 83,960,465,925,682,752
  5. Step 5: Solve for x
    x = 83,960,465,925,682,752/426,352,337.56
  6. Step 6: Final answer
    x = 196,927,420.19

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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.