Home / 80,768,516.64-121,155,239.44-31,582,405.50

Finding the Fourth Proportional to 80,768,516.64, 121,155,239.44 and 31,582,405.50

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Solution

The fourth proportional to 80,768,516.64, 121,155,239.44 and 31,582,405.50 is: 47,374,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,768,516.64 : 121,155,239.44 = 31,582,405.50 : x
  2. Step 2: Convert to fraction form
    80,768,516.64/121,155,239.44 = 31,582,405.50/x
  3. Step 3: Cross multiply
    80,768,516.64x = 121,155,239.44 × 31,582,405.50
  4. Step 4: Simplify right side
    80,768,516.64x = 3,826,373,900,443,673
  5. Step 5: Solve for x
    x = 3,826,373,900,443,673/80,768,516.64
  6. Step 6: Final answer
    x = 47,374,571.92

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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.