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Finding the Fourth Proportional to 19,880,604.80, 29,778,916.80 and 16,521,372.80

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Solution

The fourth proportional to 19,880,604.80, 29,778,916.80 and 16,521,372.80 is: 24,747,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880,604.80 : 29,778,916.80 = 16,521,372.80 : x
  2. Step 2: Convert to fraction form
    19,880,604.80/29,778,916.80 = 16,521,372.80/x
  3. Step 3: Cross multiply
    19,880,604.80x = 29,778,916.80 × 16,521,372.80
  4. Step 4: Simplify right side
    19,880,604.80x = 491,988,586,032,983.06
  5. Step 5: Solve for x
    x = 491,988,586,032,983.06/19,880,604.80
  6. Step 6: Final answer
    x = 24,747,163.93

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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.