Home / 54,306,145.80-81,459,218.70-20,220,438.60

Finding the Fourth Proportional to 54,306,145.80, 81,459,218.70 and 20,220,438.60

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Solution

The fourth proportional to 54,306,145.80, 81,459,218.70 and 20,220,438.60 is: 30,330,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,306,145.80 : 81,459,218.70 = 20,220,438.60 : x
  2. Step 2: Convert to fraction form
    54,306,145.80/81,459,218.70 = 20,220,438.60/x
  3. Step 3: Cross multiply
    54,306,145.80x = 81,459,218.70 × 20,220,438.60
  4. Step 4: Simplify right side
    54,306,145.80x = 1,647,141,130,127,322
  5. Step 5: Solve for x
    x = 1,647,141,130,127,322/54,306,145.80
  6. Step 6: Final answer
    x = 30,330,657.90

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Similar ratio
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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.