Home / 257,041,778.40-385,611,540-84,568,309.92

Finding the Fourth Proportional to 257,041,778.40, 385,611,540 and 84,568,309.92

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Solution

The fourth proportional to 257,041,778.40, 385,611,540 and 84,568,309.92 is: 126,868,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,041,778.40 : 385,611,540 = 84,568,309.92 : x
  2. Step 2: Convert to fraction form
    257,041,778.40/385,611,540 = 84,568,309.92/x
  3. Step 3: Cross multiply
    257,041,778.40x = 385,611,540 × 84,568,309.92
  4. Step 4: Simplify right side
    257,041,778.40x = 32,610,516,223,448,476
  5. Step 5: Solve for x
    x = 32,610,516,223,448,476/257,041,778.40
  6. Step 6: Final answer
    x = 126,868,544.20

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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.