Home / 13,418,834.76-18,517,503.06-7,307,129.16

Finding the Fourth Proportional to 13,418,834.76, 18,517,503.06 and 7,307,129.16

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Solution

The fourth proportional to 13,418,834.76, 18,517,503.06 and 7,307,129.16 is: 10,083,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418,834.76 : 18,517,503.06 = 7,307,129.16 : x
  2. Step 2: Convert to fraction form
    13,418,834.76/18,517,503.06 = 7,307,129.16/x
  3. Step 3: Cross multiply
    13,418,834.76x = 18,517,503.06 × 7,307,129.16
  4. Step 4: Simplify right side
    13,418,834.76x = 135,309,786,580,115.22
  5. Step 5: Solve for x
    x = 135,309,786,580,115.22/13,418,834.76
  6. Step 6: Final answer
    x = 10,083,572.01

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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.