Home / 77,963,621.60-116,945,432.40-53,777,151.20

Finding the Fourth Proportional to 77,963,621.60, 116,945,432.40 and 53,777,151.20

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Solution

The fourth proportional to 77,963,621.60, 116,945,432.40 and 53,777,151.20 is: 80,665,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,963,621.60 : 116,945,432.40 = 53,777,151.20 : x
  2. Step 2: Convert to fraction form
    77,963,621.60/116,945,432.40 = 53,777,151.20/x
  3. Step 3: Cross multiply
    77,963,621.60x = 116,945,432.40 × 53,777,151.20
  4. Step 4: Simplify right side
    77,963,621.60x = 6,288,992,200,324,180
  5. Step 5: Solve for x
    x = 6,288,992,200,324,180/77,963,621.60
  6. Step 6: Final answer
    x = 80,665,726.80

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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.