Home / 13,203,801.90-19,787,040.45-8,140,070.70

Finding the Fourth Proportional to 13,203,801.90, 19,787,040.45 and 8,140,070.70

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Solution

The fourth proportional to 13,203,801.90, 19,787,040.45 and 8,140,070.70 is: 12,198,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,801.90 : 19,787,040.45 = 8,140,070.70 : x
  2. Step 2: Convert to fraction form
    13,203,801.90/19,787,040.45 = 8,140,070.70/x
  3. Step 3: Cross multiply
    13,203,801.90x = 19,787,040.45 × 8,140,070.70
  4. Step 4: Simplify right side
    13,203,801.90x = 161,067,908,206,759.81
  5. Step 5: Solve for x
    x = 161,067,908,206,759.81/13,203,801.90
  6. Step 6: Final answer
    x = 12,198,600.78

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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.