Home / 20,648,474.88-30,972,656.80-7,694,330.64

Finding the Fourth Proportional to 20,648,474.88, 30,972,656.80 and 7,694,330.64

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Solution

The fourth proportional to 20,648,474.88, 30,972,656.80 and 7,694,330.64 is: 11,541,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648,474.88 : 30,972,656.80 = 7,694,330.64 : x
  2. Step 2: Convert to fraction form
    20,648,474.88/30,972,656.80 = 7,694,330.64/x
  3. Step 3: Cross multiply
    20,648,474.88x = 30,972,656.80 × 7,694,330.64
  4. Step 4: Simplify right side
    20,648,474.88x = 238,313,862,218,444.34
  5. Step 5: Solve for x
    x = 238,313,862,218,444.34/20,648,474.88
  6. Step 6: Final answer
    x = 11,541,475.27

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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.