Home / 86,946,685.20-130,435,774.20-43,707,070.80

Finding the Fourth Proportional to 86,946,685.20, 130,435,774.20 and 43,707,070.80

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Solution

The fourth proportional to 86,946,685.20, 130,435,774.20 and 43,707,070.80 is: 65,568,521.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,946,685.20 : 130,435,774.20 = 43,707,070.80 : x
  2. Step 2: Convert to fraction form
    86,946,685.20/130,435,774.20 = 43,707,070.80/x
  3. Step 3: Cross multiply
    86,946,685.20x = 130,435,774.20 × 43,707,070.80
  4. Step 4: Simplify right side
    86,946,685.20x = 5,700,965,617,812,213
  5. Step 5: Solve for x
    x = 5,700,965,617,812,213/86,946,685.20
  6. Step 6: Final answer
    x = 65,568,521.73

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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.