Home / 18,123,815.40-27,182,749.44-4,990,169.52

Finding the Fourth Proportional to 18,123,815.40, 27,182,749.44 and 4,990,169.52

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Solution

The fourth proportional to 18,123,815.40, 27,182,749.44 and 4,990,169.52 is: 7,484,435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123,815.40 : 27,182,749.44 = 4,990,169.52 : x
  2. Step 2: Convert to fraction form
    18,123,815.40/27,182,749.44 = 4,990,169.52/x
  3. Step 3: Cross multiply
    18,123,815.40x = 27,182,749.44 × 4,990,169.52
  4. Step 4: Simplify right side
    18,123,815.40x = 135,646,527,725,285.06
  5. Step 5: Solve for x
    x = 135,646,527,725,285.06/18,123,815.40
  6. Step 6: Final answer
    x = 7,484,435.52

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1.5x scale

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.