Home / 20,653,788.16-28,502,929.92-11,361,767.68

Finding the Fourth Proportional to 20,653,788.16, 28,502,929.92 and 11,361,767.68

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Solution

The fourth proportional to 20,653,788.16, 28,502,929.92 and 11,361,767.68 is: 15,679,625.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653,788.16 : 28,502,929.92 = 11,361,767.68 : x
  2. Step 2: Convert to fraction form
    20,653,788.16/28,502,929.92 = 11,361,767.68/x
  3. Step 3: Cross multiply
    20,653,788.16x = 28,502,929.92 × 11,361,767.68
  4. Step 4: Simplify right side
    20,653,788.16x = 323,843,667,950,361
  5. Step 5: Solve for x
    x = 323,843,667,950,361/20,653,788.16
  6. Step 6: Final answer
    x = 15,679,625.72

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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.