Home / 12,949,992.40-19,424,988.60-12,253,262.80

Finding the Fourth Proportional to 12,949,992.40, 19,424,988.60 and 12,253,262.80

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Solution

The fourth proportional to 12,949,992.40, 19,424,988.60 and 12,253,262.80 is: 18,379,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,992.40 : 19,424,988.60 = 12,253,262.80 : x
  2. Step 2: Convert to fraction form
    12,949,992.40/19,424,988.60 = 12,253,262.80/x
  3. Step 3: Cross multiply
    12,949,992.40x = 19,424,988.60 × 12,253,262.80
  4. Step 4: Simplify right side
    12,949,992.40x = 238,019,490,202,804.12
  5. Step 5: Solve for x
    x = 238,019,490,202,804.12/12,949,992.40
  6. Step 6: Final answer
    x = 18,379,894.20

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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.