Home / 12,520,228.19-17,280,433.08-8,557,081.65

Finding the Fourth Proportional to 12,520,228.19, 17,280,433.08 and 8,557,081.65

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Solution

The fourth proportional to 12,520,228.19, 17,280,433.08 and 8,557,081.65 is: 11,810,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,228.19 : 17,280,433.08 = 8,557,081.65 : x
  2. Step 2: Convert to fraction form
    12,520,228.19/17,280,433.08 = 8,557,081.65/x
  3. Step 3: Cross multiply
    12,520,228.19x = 17,280,433.08 × 8,557,081.65
  4. Step 4: Simplify right side
    12,520,228.19x = 147,870,076,812,920.97
  5. Step 5: Solve for x
    x = 147,870,076,812,920.97/12,520,228.19
  6. Step 6: Final answer
    x = 11,810,493.76

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1.5x scale

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.