Home / 12,529,305.20-18,834,047.40-11,641,804.40

Finding the Fourth Proportional to 12,529,305.20, 18,834,047.40 and 11,641,804.40

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Solution

The fourth proportional to 12,529,305.20, 18,834,047.40 and 11,641,804.40 is: 17,499,956.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529,305.20 : 18,834,047.40 = 11,641,804.40 : x
  2. Step 2: Convert to fraction form
    12,529,305.20/18,834,047.40 = 11,641,804.40/x
  3. Step 3: Cross multiply
    12,529,305.20x = 18,834,047.40 × 11,641,804.40
  4. Step 4: Simplify right side
    12,529,305.20x = 219,262,295,891,128.56
  5. Step 5: Solve for x
    x = 219,262,295,891,128.56/12,529,305.20
  6. Step 6: Final answer
    x = 17,499,956.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.