Home / 21,851,115.09-30,154,534.26-12,061,556.72

Finding the Fourth Proportional to 21,851,115.09, 30,154,534.26 and 12,061,556.72

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Solution

The fourth proportional to 21,851,115.09, 30,154,534.26 and 12,061,556.72 is: 16,644,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,115.09 : 30,154,534.26 = 12,061,556.72 : x
  2. Step 2: Convert to fraction form
    21,851,115.09/30,154,534.26 = 12,061,556.72/x
  3. Step 3: Cross multiply
    21,851,115.09x = 30,154,534.26 × 12,061,556.72
  4. Step 4: Simplify right side
    21,851,115.09x = 363,710,625,191,400.56
  5. Step 5: Solve for x
    x = 363,710,625,191,400.56/21,851,115.09
  6. Step 6: Final answer
    x = 16,644,945.75

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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.