Home / 12,010,771.20-18,019,228.80-8,471,827.20

Finding the Fourth Proportional to 12,010,771.20, 18,019,228.80 and 8,471,827.20

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Solution

The fourth proportional to 12,010,771.20, 18,019,228.80 and 8,471,827.20 is: 12,709,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,010,771.20 : 18,019,228.80 = 8,471,827.20 : x
  2. Step 2: Convert to fraction form
    12,010,771.20/18,019,228.80 = 8,471,827.20/x
  3. Step 3: Cross multiply
    12,010,771.20x = 18,019,228.80 × 8,471,827.20
  4. Step 4: Simplify right side
    12,010,771.20x = 152,655,792,670,863.34
  5. Step 5: Solve for x
    x = 152,655,792,670,863.34/12,010,771.20
  6. Step 6: Final answer
    x = 12,709,907.64

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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.