Home / 69,986,127.60-104,979,191.40-18,873,313.20

Finding the Fourth Proportional to 69,986,127.60, 104,979,191.40 and 18,873,313.20

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Solution

The fourth proportional to 69,986,127.60, 104,979,191.40 and 18,873,313.20 is: 28,309,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,986,127.60 : 104,979,191.40 = 18,873,313.20 : x
  2. Step 2: Convert to fraction form
    69,986,127.60/104,979,191.40 = 18,873,313.20/x
  3. Step 3: Cross multiply
    69,986,127.60x = 104,979,191.40 × 18,873,313.20
  4. Step 4: Simplify right side
    69,986,127.60x = 1,981,305,158,774,946.50
  5. Step 5: Solve for x
    x = 1,981,305,158,774,946.50/69,986,127.60
  6. Step 6: Final answer
    x = 28,309,969.80

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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.