Home / 15,028,871.38-20,739,850.02-8,153,351.62

Finding the Fourth Proportional to 15,028,871.38, 20,739,850.02 and 8,153,351.62

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Solution

The fourth proportional to 15,028,871.38, 20,739,850.02 and 8,153,351.62 is: 11,251,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,871.38 : 20,739,850.02 = 8,153,351.62 : x
  2. Step 2: Convert to fraction form
    15,028,871.38/20,739,850.02 = 8,153,351.62/x
  3. Step 3: Cross multiply
    15,028,871.38x = 20,739,850.02 × 8,153,351.62
  4. Step 4: Simplify right side
    15,028,871.38x = 169,099,289,759,124.03
  5. Step 5: Solve for x
    x = 169,099,289,759,124.03/15,028,871.38
  6. Step 6: Final answer
    x = 11,251,629.31

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1.5x scale

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.