Home / 15,187,807.48-20,959,229.87-8,218,485.10

Finding the Fourth Proportional to 15,187,807.48, 20,959,229.87 and 8,218,485.10

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Solution

The fourth proportional to 15,187,807.48, 20,959,229.87 and 8,218,485.10 is: 11,341,539.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187,807.48 : 20,959,229.87 = 8,218,485.10 : x
  2. Step 2: Convert to fraction form
    15,187,807.48/20,959,229.87 = 8,218,485.10/x
  3. Step 3: Cross multiply
    15,187,807.48x = 20,959,229.87 × 8,218,485.10
  4. Step 4: Simplify right side
    15,187,807.48x = 172,253,118,394,069.94
  5. Step 5: Solve for x
    x = 172,253,118,394,069.94/15,187,807.48
  6. Step 6: Final answer
    x = 11,341,539.50

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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.