Home / 28,764,219.20-39,694,360.20-15,711,476

Finding the Fourth Proportional to 28,764,219.20, 39,694,360.20 and 15,711,476

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Solution

The fourth proportional to 28,764,219.20, 39,694,360.20 and 15,711,476 is: 21,681,693.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,764,219.20 : 39,694,360.20 = 15,711,476 : x
  2. Step 2: Convert to fraction form
    28,764,219.20/39,694,360.20 = 15,711,476/x
  3. Step 3: Cross multiply
    28,764,219.20x = 39,694,360.20 × 15,711,476
  4. Step 4: Simplify right side
    28,764,219.20x = 623,656,987,617,655.25
  5. Step 5: Solve for x
    x = 623,656,987,617,655.25/28,764,219.20
  6. Step 6: Final answer
    x = 21,681,693.61

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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.