Home / 54,305,852.80-81,458,779.20-20,220,145.60

Finding the Fourth Proportional to 54,305,852.80, 81,458,779.20 and 20,220,145.60

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Solution

The fourth proportional to 54,305,852.80, 81,458,779.20 and 20,220,145.60 is: 30,330,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,305,852.80 : 81,458,779.20 = 20,220,145.60 : x
  2. Step 2: Convert to fraction form
    54,305,852.80/81,458,779.20 = 20,220,145.60/x
  3. Step 3: Cross multiply
    54,305,852.80x = 81,458,779.20 × 20,220,145.60
  4. Step 4: Simplify right side
    54,305,852.80x = 1,647,108,375,822,251.75
  5. Step 5: Solve for x
    x = 1,647,108,375,822,251.75/54,305,852.80
  6. Step 6: Final answer
    x = 30,330,218.40

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1.5x scale

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.