Home / 27,270,010.80-40,905,016.20-12,921,103.80

Finding the Fourth Proportional to 27,270,010.80, 40,905,016.20 and 12,921,103.80

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Solution

The fourth proportional to 27,270,010.80, 40,905,016.20 and 12,921,103.80 is: 19,381,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270,010.80 : 40,905,016.20 = 12,921,103.80 : x
  2. Step 2: Convert to fraction form
    27,270,010.80/40,905,016.20 = 12,921,103.80/x
  3. Step 3: Cross multiply
    27,270,010.80x = 40,905,016.20 × 12,921,103.80
  4. Step 4: Simplify right side
    27,270,010.80x = 528,537,960,260,881.62
  5. Step 5: Solve for x
    x = 528,537,960,260,881.62/27,270,010.80
  6. Step 6: Final answer
    x = 19,381,655.70

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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.