Home / 139,704,947.51-192,803,017.19-80,982,772.79

Finding the Fourth Proportional to 139,704,947.51, 192,803,017.19 and 80,982,772.79

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Solution

The fourth proportional to 139,704,947.51, 192,803,017.19 and 80,982,772.79 is: 111,762,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,704,947.51 : 192,803,017.19 = 80,982,772.79 : x
  2. Step 2: Convert to fraction form
    139,704,947.51/192,803,017.19 = 80,982,772.79/x
  3. Step 3: Cross multiply
    139,704,947.51x = 192,803,017.19 × 80,982,772.79
  4. Step 4: Simplify right side
    139,704,947.51x = 15,613,722,932,955,304
  5. Step 5: Solve for x
    x = 15,613,722,932,955,304/139,704,947.51
  6. Step 6: Final answer
    x = 111,762,133.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.