Home / 54,389,823.20-81,584,734.80-20,309,364.80

Finding the Fourth Proportional to 54,389,823.20, 81,584,734.80 and 20,309,364.80

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Solution

The fourth proportional to 54,389,823.20, 81,584,734.80 and 20,309,364.80 is: 30,464,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,389,823.20 : 81,584,734.80 = 20,309,364.80 : x
  2. Step 2: Convert to fraction form
    54,389,823.20/81,584,734.80 = 20,309,364.80/x
  3. Step 3: Cross multiply
    54,389,823.20x = 81,584,734.80 × 20,309,364.80
  4. Step 4: Simplify right side
    54,389,823.20x = 1,656,934,141,164,455
  5. Step 5: Solve for x
    x = 1,656,934,141,164,455/54,389,823.20
  6. Step 6: Final answer
    x = 30,464,047.20

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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.