Home / 15,449,928.45-21,311,203.14-9,166,006.86

Finding the Fourth Proportional to 15,449,928.45, 21,311,203.14 and 9,166,006.86

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Solution

The fourth proportional to 15,449,928.45, 21,311,203.14 and 9,166,006.86 is: 12,643,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,449,928.45 : 21,311,203.14 = 9,166,006.86 : x
  2. Step 2: Convert to fraction form
    15,449,928.45/21,311,203.14 = 9,166,006.86/x
  3. Step 3: Cross multiply
    15,449,928.45x = 21,311,203.14 × 9,166,006.86
  4. Step 4: Simplify right side
    15,449,928.45x = 195,338,634,176,093.53
  5. Step 5: Solve for x
    x = 195,338,634,176,093.53/15,449,928.45
  6. Step 6: Final answer
    x = 12,643,335.85

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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.