Home / 28,695,843-39,614,401.22-19,881,977.85

Finding the Fourth Proportional to 28,695,843, 39,614,401.22 and 19,881,977.85

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Solution

The fourth proportional to 28,695,843, 39,614,401.22 and 19,881,977.85 is: 27,446,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695,843 : 39,614,401.22 = 19,881,977.85 : x
  2. Step 2: Convert to fraction form
    28,695,843/39,614,401.22 = 19,881,977.85/x
  3. Step 3: Cross multiply
    28,695,843x = 39,614,401.22 × 19,881,977.85
  4. Step 4: Simplify right side
    28,695,843x = 787,612,647,497,643.25
  5. Step 5: Solve for x
    x = 787,612,647,497,643.25/28,695,843
  6. Step 6: Final answer
    x = 27,446,924.89

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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.