Home / 15,538,363.44-21,447,077.04-9,178,789.56

Finding the Fourth Proportional to 15,538,363.44, 21,447,077.04 and 9,178,789.56

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Solution

The fourth proportional to 15,538,363.44, 21,447,077.04 and 9,178,789.56 is: 12,669,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538,363.44 : 21,447,077.04 = 9,178,789.56 : x
  2. Step 2: Convert to fraction form
    15,538,363.44/21,447,077.04 = 9,178,789.56/x
  3. Step 3: Cross multiply
    15,538,363.44x = 21,447,077.04 × 9,178,789.56
  4. Step 4: Simplify right side
    15,538,363.44x = 196,858,206,827,267.72
  5. Step 5: Solve for x
    x = 196,858,206,827,267.72/15,538,363.44
  6. Step 6: Final answer
    x = 12,669,172.50

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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.