Home / 49,389,009.60-74,091,387.60-20,620,336.80

Finding the Fourth Proportional to 49,389,009.60, 74,091,387.60 and 20,620,336.80

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Solution

The fourth proportional to 49,389,009.60, 74,091,387.60 and 20,620,336.80 is: 30,933,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,389,009.60 : 74,091,387.60 = 20,620,336.80 : x
  2. Step 2: Convert to fraction form
    49,389,009.60/74,091,387.60 = 20,620,336.80/x
  3. Step 3: Cross multiply
    49,389,009.60x = 74,091,387.60 × 20,620,336.80
  4. Step 4: Simplify right side
    49,389,009.60x = 1,527,789,366,291,343.50
  5. Step 5: Solve for x
    x = 1,527,789,366,291,343.50/49,389,009.60
  6. Step 6: Final answer
    x = 30,933,792.33

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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.