Home / 28,981,321.30-43,471,981.95-17,643,913.30

Finding the Fourth Proportional to 28,981,321.30, 43,471,981.95 and 17,643,913.30

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Solution

The fourth proportional to 28,981,321.30, 43,471,981.95 and 17,643,913.30 is: 26,465,869.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,321.30 : 43,471,981.95 = 17,643,913.30 : x
  2. Step 2: Convert to fraction form
    28,981,321.30/43,471,981.95 = 17,643,913.30/x
  3. Step 3: Cross multiply
    28,981,321.30x = 43,471,981.95 × 17,643,913.30
  4. Step 4: Simplify right side
    28,981,321.30x = 767,015,880,504,965
  5. Step 5: Solve for x
    x = 767,015,880,504,965/28,981,321.30
  6. Step 6: Final answer
    x = 26,465,869.95

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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.