Home / 12,983,542.10-19,477,085.42-5,408,736.38

Finding the Fourth Proportional to 12,983,542.10, 19,477,085.42 and 5,408,736.38

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Solution

The fourth proportional to 12,983,542.10, 19,477,085.42 and 5,408,736.38 is: 8,113,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,542.10 : 19,477,085.42 = 5,408,736.38 : x
  2. Step 2: Convert to fraction form
    12,983,542.10/19,477,085.42 = 5,408,736.38/x
  3. Step 3: Cross multiply
    12,983,542.10x = 19,477,085.42 × 5,408,736.38
  4. Step 4: Simplify right side
    12,983,542.10x = 105,346,420,403,657.98
  5. Step 5: Solve for x
    x = 105,346,420,403,657.98/12,983,542.10
  6. Step 6: Final answer
    x = 8,113,842.87

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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.