Home / 15,322,920.46-21,145,774.67-8,447,648.56

Finding the Fourth Proportional to 15,322,920.46, 21,145,774.67 and 8,447,648.56

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Solution

The fourth proportional to 15,322,920.46, 21,145,774.67 and 8,447,648.56 is: 11,657,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,920.46 : 21,145,774.67 = 8,447,648.56 : x
  2. Step 2: Convert to fraction form
    15,322,920.46/21,145,774.67 = 8,447,648.56/x
  3. Step 3: Cross multiply
    15,322,920.46x = 21,145,774.67 × 8,447,648.56
  4. Step 4: Simplify right side
    15,322,920.46x = 178,632,072,941,110
  5. Step 5: Solve for x
    x = 178,632,072,941,110/15,322,920.46
  6. Step 6: Final answer
    x = 11,657,834.64

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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.