Home / 11,520,947.20-17,281,420.80-7,247,257.60

Finding the Fourth Proportional to 11,520,947.20, 17,281,420.80 and 7,247,257.60

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Solution

The fourth proportional to 11,520,947.20, 17,281,420.80 and 7,247,257.60 is: 10,870,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520,947.20 : 17,281,420.80 = 7,247,257.60 : x
  2. Step 2: Convert to fraction form
    11,520,947.20/17,281,420.80 = 7,247,257.60/x
  3. Step 3: Cross multiply
    11,520,947.20x = 17,281,420.80 × 7,247,257.60
  4. Step 4: Simplify right side
    11,520,947.20x = 125,242,908,231,598.08
  5. Step 5: Solve for x
    x = 125,242,908,231,598.08/11,520,947.20
  6. Step 6: Final answer
    x = 10,870,886.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.