Home / 148,256,468.40-204,593,572.20-81,275,306.88

Finding the Fourth Proportional to 148,256,468.40, 204,593,572.20 and 81,275,306.88

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Solution

The fourth proportional to 148,256,468.40, 204,593,572.20 and 81,275,306.88 is: 112,159,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,256,468.40 : 204,593,572.20 = 81,275,306.88 : x
  2. Step 2: Convert to fraction form
    148,256,468.40/204,593,572.20 = 81,275,306.88/x
  3. Step 3: Cross multiply
    148,256,468.40x = 204,593,572.20 × 81,275,306.88
  4. Step 4: Simplify right side
    148,256,468.40x = 16,628,405,366,230,434
  5. Step 5: Solve for x
    x = 16,628,405,366,230,434/148,256,468.40
  6. Step 6: Final answer
    x = 112,159,729.32

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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.