Home / 40,500,821.79-55,891,282.19-21,915,962.10

Finding the Fourth Proportional to 40,500,821.79, 55,891,282.19 and 21,915,962.10

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Solution

The fourth proportional to 40,500,821.79, 55,891,282.19 and 21,915,962.10 is: 30,244,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,500,821.79 : 55,891,282.19 = 21,915,962.10 : x
  2. Step 2: Convert to fraction form
    40,500,821.79/55,891,282.19 = 21,915,962.10/x
  3. Step 3: Cross multiply
    40,500,821.79x = 55,891,282.19 × 21,915,962.10
  4. Step 4: Simplify right side
    40,500,821.79x = 1,224,911,222,086,865.25
  5. Step 5: Solve for x
    x = 1,224,911,222,086,865.25/40,500,821.79
  6. Step 6: Final answer
    x = 30,244,107.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.