Home / 53,179,743.20-79,713,627.60-20,819,141.60

Finding the Fourth Proportional to 53,179,743.20, 79,713,627.60 and 20,819,141.60

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Solution

The fourth proportional to 53,179,743.20, 79,713,627.60 and 20,819,141.60 is: 31,206,794.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179,743.20 : 79,713,627.60 = 20,819,141.60 : x
  2. Step 2: Convert to fraction form
    53,179,743.20/79,713,627.60 = 20,819,141.60/x
  3. Step 3: Cross multiply
    53,179,743.20x = 79,713,627.60 × 20,819,141.60
  4. Step 4: Simplify right side
    53,179,743.20x = 1,659,569,300,454,068.25
  5. Step 5: Solve for x
    x = 1,659,569,300,454,068.25/53,179,743.20
  6. Step 6: Final answer
    x = 31,206,794.18

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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.