Home / 13,081,429.98-18,052,131.15-7,280,160.57

Finding the Fourth Proportional to 13,081,429.98, 18,052,131.15 and 7,280,160.57

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Solution

The fourth proportional to 13,081,429.98, 18,052,131.15 and 7,280,160.57 is: 10,046,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081,429.98 : 18,052,131.15 = 7,280,160.57 : x
  2. Step 2: Convert to fraction form
    13,081,429.98/18,052,131.15 = 7,280,160.57/x
  3. Step 3: Cross multiply
    13,081,429.98x = 18,052,131.15 × 7,280,160.57
  4. Step 4: Simplify right side
    13,081,429.98x = 131,422,413,402,698.75
  5. Step 5: Solve for x
    x = 131,422,413,402,698.75/13,081,429.98
  6. Step 6: Final answer
    x = 10,046,486.78

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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.