Home / 15,281,092.40-21,087,463.25-8,405,572.64

Finding the Fourth Proportional to 15,281,092.40, 21,087,463.25 and 8,405,572.64

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Solution

The fourth proportional to 15,281,092.40, 21,087,463.25 and 8,405,572.64 is: 11,599,445.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281,092.40 : 21,087,463.25 = 8,405,572.64 : x
  2. Step 2: Convert to fraction form
    15,281,092.40/21,087,463.25 = 8,405,572.64/x
  3. Step 3: Cross multiply
    15,281,092.40x = 21,087,463.25 × 8,405,572.64
  4. Step 4: Simplify right side
    15,281,092.40x = 177,252,204,056,782.09
  5. Step 5: Solve for x
    x = 177,252,204,056,782.09/15,281,092.40
  6. Step 6: Final answer
    x = 11,599,445.87

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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.