Home / 15,218,133.46-21,002,352.78-8,343,944.12

Finding the Fourth Proportional to 15,218,133.46, 21,002,352.78 and 8,343,944.12

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Solution

The fourth proportional to 15,218,133.46, 21,002,352.78 and 8,343,944.12 is: 11,515,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,133.46 : 21,002,352.78 = 8,343,944.12 : x
  2. Step 2: Convert to fraction form
    15,218,133.46/21,002,352.78 = 8,343,944.12/x
  3. Step 3: Cross multiply
    15,218,133.46x = 21,002,352.78 × 8,343,944.12
  4. Step 4: Simplify right side
    15,218,133.46x = 175,242,457,943,126.94
  5. Step 5: Solve for x
    x = 175,242,457,943,126.94/15,218,133.46
  6. Step 6: Final answer
    x = 11,515,371.35

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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.