Home / 12,245,897.16-18,362,809.62-4,155,921.72

Finding the Fourth Proportional to 12,245,897.16, 18,362,809.62 and 4,155,921.72

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Solution

The fourth proportional to 12,245,897.16, 18,362,809.62 and 4,155,921.72 is: 6,231,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245,897.16 : 18,362,809.62 = 4,155,921.72 : x
  2. Step 2: Convert to fraction form
    12,245,897.16/18,362,809.62 = 4,155,921.72/x
  3. Step 3: Cross multiply
    12,245,897.16x = 18,362,809.62 × 4,155,921.72
  4. Step 4: Simplify right side
    12,245,897.16x = 76,314,399,339,982.95
  5. Step 5: Solve for x
    x = 76,314,399,339,982.95/12,245,897.16
  6. Step 6: Final answer
    x = 6,231,834.09

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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.