Home / 21,359,805.22-29,476,672.74-11,570,249.40

Finding the Fourth Proportional to 21,359,805.22, 29,476,672.74 and 11,570,249.40

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Solution

The fourth proportional to 21,359,805.22, 29,476,672.74 and 11,570,249.40 is: 15,967,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359,805.22 : 29,476,672.74 = 11,570,249.40 : x
  2. Step 2: Convert to fraction form
    21,359,805.22/29,476,672.74 = 11,570,249.40/x
  3. Step 3: Cross multiply
    21,359,805.22x = 29,476,672.74 × 11,570,249.40
  4. Step 4: Simplify right side
    21,359,805.22x = 341,052,455,083,981.38
  5. Step 5: Solve for x
    x = 341,052,455,083,981.38/21,359,805.22
  6. Step 6: Final answer
    x = 15,967,020.84

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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.