Home / 40,500,767.28-55,891,207.04-21,915,907.60

Finding the Fourth Proportional to 40,500,767.28, 55,891,207.04 and 21,915,907.60

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Solution

The fourth proportional to 40,500,767.28, 55,891,207.04 and 21,915,907.60 is: 30,244,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,500,767.28 : 55,891,207.04 = 21,915,907.60 : x
  2. Step 2: Convert to fraction form
    40,500,767.28/55,891,207.04 = 21,915,907.60/x
  3. Step 3: Cross multiply
    40,500,767.28x = 55,891,207.04 × 21,915,907.60
  4. Step 4: Simplify right side
    40,500,767.28x = 1,224,906,529,141,109.50
  5. Step 5: Solve for x
    x = 1,224,906,529,141,109.50/40,500,767.28
  6. Step 6: Final answer
    x = 30,244,032.68

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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.