Home / 158,218,558.40-237,396,037.92-85,420,883.84

Finding the Fourth Proportional to 158,218,558.40, 237,396,037.92 and 85,420,883.84

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Solution

The fourth proportional to 158,218,558.40, 237,396,037.92 and 85,420,883.84 is: 128,168,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,218,558.40 : 237,396,037.92 = 85,420,883.84 : x
  2. Step 2: Convert to fraction form
    158,218,558.40/237,396,037.92 = 85,420,883.84/x
  3. Step 3: Cross multiply
    158,218,558.40x = 237,396,037.92 × 85,420,883.84
  4. Step 4: Simplify right side
    158,218,558.40x = 20,278,579,379,240,556
  5. Step 5: Solve for x
    x = 20,278,579,379,240,556/158,218,558.40
  6. Step 6: Final answer
    x = 128,168,146.55

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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.