Home / 21,575,605.47-29,775,240.68-12,408,255.51

Finding the Fourth Proportional to 21,575,605.47, 29,775,240.68 and 12,408,255.51

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Solution

The fourth proportional to 21,575,605.47, 29,775,240.68 and 12,408,255.51 is: 17,123,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575,605.47 : 29,775,240.68 = 12,408,255.51 : x
  2. Step 2: Convert to fraction form
    21,575,605.47/29,775,240.68 = 12,408,255.51/x
  3. Step 3: Cross multiply
    21,575,605.47x = 29,775,240.68 × 12,408,255.51
  4. Step 4: Simplify right side
    21,575,605.47x = 369,458,794,167,144.88
  5. Step 5: Solve for x
    x = 369,458,794,167,144.88/21,575,605.47
  6. Step 6: Final answer
    x = 17,123,913.15

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1.5x scale

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.