Home / 77,443,138.90-106,867,474.98-42,629,029.48

Finding the Fourth Proportional to 77,443,138.90, 106,867,474.98 and 42,629,029.48

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Solution

The fourth proportional to 77,443,138.90, 106,867,474.98 and 42,629,029.48 is: 58,825,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,443,138.90 : 106,867,474.98 = 42,629,029.48 : x
  2. Step 2: Convert to fraction form
    77,443,138.90/106,867,474.98 = 42,629,029.48/x
  3. Step 3: Cross multiply
    77,443,138.90x = 106,867,474.98 × 42,629,029.48
  4. Step 4: Simplify right side
    77,443,138.90x = 4,555,656,741,375,582
  5. Step 5: Solve for x
    x = 4,555,656,741,375,582/77,443,138.90
  6. Step 6: Final answer
    x = 58,825,827.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.