Home / 21,069,788.85-29,078,668.31-11,903,022.09

Finding the Fourth Proportional to 21,069,788.85, 29,078,668.31 and 11,903,022.09

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Solution

The fourth proportional to 21,069,788.85, 29,078,668.31 and 11,903,022.09 is: 16,427,503.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,788.85 : 29,078,668.31 = 11,903,022.09 : x
  2. Step 2: Convert to fraction form
    21,069,788.85/29,078,668.31 = 11,903,022.09/x
  3. Step 3: Cross multiply
    21,069,788.85x = 29,078,668.31 × 11,903,022.09
  4. Step 4: Simplify right side
    21,069,788.85x = 346,124,031,182,197.88
  5. Step 5: Solve for x
    x = 346,124,031,182,197.88/21,069,788.85
  6. Step 6: Final answer
    x = 16,427,503.55

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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.