Home / 21,580,369.80-29,780,562.66-11,790,603.72

Finding the Fourth Proportional to 21,580,369.80, 29,780,562.66 and 11,790,603.72

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Solution

The fourth proportional to 21,580,369.80, 29,780,562.66 and 11,790,603.72 is: 16,270,843.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,369.80 : 29,780,562.66 = 11,790,603.72 : x
  2. Step 2: Convert to fraction form
    21,580,369.80/29,780,562.66 = 11,790,603.72/x
  3. Step 3: Cross multiply
    21,580,369.80x = 29,780,562.66 × 11,790,603.72
  4. Step 4: Simplify right side
    21,580,369.80x = 351,130,812,882,689.12
  5. Step 5: Solve for x
    x = 351,130,812,882,689.12/21,580,369.80
  6. Step 6: Final answer
    x = 16,270,843.18

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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.