Home / 8,916,605.10-12,304,916.82-5,431,943.69

Finding the Fourth Proportional to 8,916,605.10, 12,304,916.82 and 5,431,943.69

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Solution

The fourth proportional to 8,916,605.10, 12,304,916.82 and 5,431,943.69 is: 7,496,083.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916,605.10 : 12,304,916.82 = 5,431,943.69 : x
  2. Step 2: Convert to fraction form
    8,916,605.10/12,304,916.82 = 5,431,943.69/x
  3. Step 3: Cross multiply
    8,916,605.10x = 12,304,916.82 × 5,431,943.69
  4. Step 4: Simplify right side
    8,916,605.10x = 66,839,615,187,689.55
  5. Step 5: Solve for x
    x = 66,839,615,187,689.55/8,916,605.10
  6. Step 6: Final answer
    x = 7,496,083.37

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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.