Home / 20,340,359.06-28,069,901.49-11,048,110.55

Finding the Fourth Proportional to 20,340,359.06, 28,069,901.49 and 11,048,110.55

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Solution

The fourth proportional to 20,340,359.06, 28,069,901.49 and 11,048,110.55 is: 15,246,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340,359.06 : 28,069,901.49 = 11,048,110.55 : x
  2. Step 2: Convert to fraction form
    20,340,359.06/28,069,901.49 = 11,048,110.55/x
  3. Step 3: Cross multiply
    20,340,359.06x = 28,069,901.49 × 11,048,110.55
  4. Step 4: Simplify right side
    20,340,359.06x = 310,119,374,789,129.75
  5. Step 5: Solve for x
    x = 310,119,374,789,129.75/20,340,359.06
  6. Step 6: Final answer
    x = 15,246,504.44

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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.