Home / 13,061,078.36-18,024,299.66-7,180,812.59

Finding the Fourth Proportional to 13,061,078.36, 18,024,299.66 and 7,180,812.59

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Solution

The fourth proportional to 13,061,078.36, 18,024,299.66 and 7,180,812.59 is: 9,909,527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,061,078.36 : 18,024,299.66 = 7,180,812.59 : x
  2. Step 2: Convert to fraction form
    13,061,078.36/18,024,299.66 = 7,180,812.59/x
  3. Step 3: Cross multiply
    13,061,078.36x = 18,024,299.66 × 7,180,812.59
  4. Step 4: Simplify right side
    13,061,078.36x = 129,429,117,987,473.52
  5. Step 5: Solve for x
    x = 129,429,117,987,473.52/13,061,078.36
  6. Step 6: Final answer
    x = 9,909,527.72

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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.