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Finding the Fourth Proportional to 19,579,645.80, 29,369,468.70 and 16,682,308.20

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Solution

The fourth proportional to 19,579,645.80, 29,369,468.70 and 16,682,308.20 is: 25,023,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579,645.80 : 29,369,468.70 = 16,682,308.20 : x
  2. Step 2: Convert to fraction form
    19,579,645.80/29,369,468.70 = 16,682,308.20/x
  3. Step 3: Cross multiply
    19,579,645.80x = 29,369,468.70 × 16,682,308.20
  4. Step 4: Simplify right side
    19,579,645.80x = 489,950,528,523,653.31
  5. Step 5: Solve for x
    x = 489,950,528,523,653.31/19,579,645.80
  6. Step 6: Final answer
    x = 25,023,462.30

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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.