Home / 86,946,643.20-130,435,711.20-43,707,028.80

Finding the Fourth Proportional to 86,946,643.20, 130,435,711.20 and 43,707,028.80

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Solution

The fourth proportional to 86,946,643.20, 130,435,711.20 and 43,707,028.80 is: 65,568,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946,643.20 : 130,435,711.20 = 43,707,028.80 : x
  2. Step 2: Convert to fraction form
    86,946,643.20/130,435,711.20 = 43,707,028.80/x
  3. Step 3: Cross multiply
    86,946,643.20x = 130,435,711.20 × 43,707,028.80
  4. Step 4: Simplify right side
    86,946,643.20x = 5,700,957,385,966,882
  5. Step 5: Solve for x
    x = 5,700,957,385,966,882/86,946,643.20
  6. Step 6: Final answer
    x = 65,568,458.73

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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.