Home / 159,036,718.80-238,555,078.20-128,803,630.80

Finding the Fourth Proportional to 159,036,718.80, 238,555,078.20 and 128,803,630.80

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Solution

The fourth proportional to 159,036,718.80, 238,555,078.20 and 128,803,630.80 is: 193,205,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,036,718.80 : 238,555,078.20 = 128,803,630.80 : x
  2. Step 2: Convert to fraction form
    159,036,718.80/238,555,078.20 = 128,803,630.80/x
  3. Step 3: Cross multiply
    159,036,718.80x = 238,555,078.20 × 128,803,630.80
  4. Step 4: Simplify right side
    159,036,718.80x = 30,726,760,217,937,928
  5. Step 5: Solve for x
    x = 30,726,760,217,937,928/159,036,718.80
  6. Step 6: Final answer
    x = 193,205,446.20

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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.