Home / 28,981,276.80-43,471,915.20-17,643,868.80

Finding the Fourth Proportional to 28,981,276.80, 43,471,915.20 and 17,643,868.80

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Solution

The fourth proportional to 28,981,276.80, 43,471,915.20 and 17,643,868.80 is: 26,465,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,276.80 : 43,471,915.20 = 17,643,868.80 : x
  2. Step 2: Convert to fraction form
    28,981,276.80/43,471,915.20 = 17,643,868.80/x
  3. Step 3: Cross multiply
    28,981,276.80x = 43,471,915.20 × 17,643,868.80
  4. Step 4: Simplify right side
    28,981,276.80x = 767,012,768,273,525.88
  5. Step 5: Solve for x
    x = 767,012,768,273,525.88/28,981,276.80
  6. Step 6: Final answer
    x = 26,465,803.20

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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.