Home / 128,740,324.60-192,942,525.30-59,645,121.40

Finding the Fourth Proportional to 128,740,324.60, 192,942,525.30 and 59,645,121.40

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Solution

The fourth proportional to 128,740,324.60, 192,942,525.30 and 59,645,121.40 is: 89,389,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,740,324.60 : 192,942,525.30 = 59,645,121.40 : x
  2. Step 2: Convert to fraction form
    128,740,324.60/192,942,525.30 = 59,645,121.40/x
  3. Step 3: Cross multiply
    128,740,324.60x = 192,942,525.30 × 59,645,121.40
  4. Step 4: Simplify right side
    128,740,324.60x = 11,508,080,344,741,072
  5. Step 5: Solve for x
    x = 11,508,080,344,741,072/128,740,324.60
  6. Step 6: Final answer
    x = 89,389,865.84

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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.