Home / 82,661,875.20-123,925,628.16-28,846,978.56

Finding the Fourth Proportional to 82,661,875.20, 123,925,628.16 and 28,846,978.56

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Solution

The fourth proportional to 82,661,875.20, 123,925,628.16 and 28,846,978.56 is: 43,247,022.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,661,875.20 : 123,925,628.16 = 28,846,978.56 : x
  2. Step 2: Convert to fraction form
    82,661,875.20/123,925,628.16 = 28,846,978.56/x
  3. Step 3: Cross multiply
    82,661,875.20x = 123,925,628.16 × 28,846,978.56
  4. Step 4: Simplify right side
    82,661,875.20x = 3,574,879,938,566,052
  5. Step 5: Solve for x
    x = 3,574,879,938,566,052/82,661,875.20
  6. Step 6: Final answer
    x = 43,247,022.04

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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.