Home / 40,500,821.30-55,891,281.50-21,915,961.60

Finding the Fourth Proportional to 40,500,821.30, 55,891,281.50 and 21,915,961.60

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Solution

The fourth proportional to 40,500,821.30, 55,891,281.50 and 21,915,961.60 is: 30,244,107.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,500,821.30 : 55,891,281.50 = 21,915,961.60 : x
  2. Step 2: Convert to fraction form
    40,500,821.30/55,891,281.50 = 21,915,961.60/x
  3. Step 3: Cross multiply
    40,500,821.30x = 55,891,281.50 × 21,915,961.60
  4. Step 4: Simplify right side
    40,500,821.30x = 1,224,911,179,128,790.50
  5. Step 5: Solve for x
    x = 1,224,911,179,128,790.50/40,500,821.30
  6. Step 6: Final answer
    x = 30,244,107.15

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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.