Home / 13,199,906.81-18,215,911.88-7,319,955.02

Finding the Fourth Proportional to 13,199,906.81, 18,215,911.88 and 7,319,955.02

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Solution

The fourth proportional to 13,199,906.81, 18,215,911.88 and 7,319,955.02 is: 10,101,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199,906.81 : 18,215,911.88 = 7,319,955.02 : x
  2. Step 2: Convert to fraction form
    13,199,906.81/18,215,911.88 = 7,319,955.02/x
  3. Step 3: Cross multiply
    13,199,906.81x = 18,215,911.88 × 7,319,955.02
  4. Step 4: Simplify right side
    13,199,906.81x = 133,339,655,537,103.97
  5. Step 5: Solve for x
    x = 133,339,655,537,103.97/13,199,906.81
  6. Step 6: Final answer
    x = 10,101,560.37

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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.