Home / 12,458,003.70-18,687,005.55-3,940,950.90

Finding the Fourth Proportional to 12,458,003.70, 18,687,005.55 and 3,940,950.90

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Solution

The fourth proportional to 12,458,003.70, 18,687,005.55 and 3,940,950.90 is: 5,911,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,003.70 : 18,687,005.55 = 3,940,950.90 : x
  2. Step 2: Convert to fraction form
    12,458,003.70/18,687,005.55 = 3,940,950.90/x
  3. Step 3: Cross multiply
    12,458,003.70x = 18,687,005.55 × 3,940,950.90
  4. Step 4: Simplify right side
    12,458,003.70x = 73,644,571,340,577.50
  5. Step 5: Solve for x
    x = 73,644,571,340,577.50/12,458,003.70
  6. Step 6: Final answer
    x = 5,911,426.35

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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.