Home / 28,544,403.21-39,391,570.80-15,491,774.85

Finding the Fourth Proportional to 28,544,403.21, 39,391,570.80 and 15,491,774.85

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Solution

The fourth proportional to 28,544,403.21, 39,391,570.80 and 15,491,774.85 is: 21,378,809.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544,403.21 : 39,391,570.80 = 15,491,774.85 : x
  2. Step 2: Convert to fraction form
    28,544,403.21/39,391,570.80 = 15,491,774.85/x
  3. Step 3: Cross multiply
    28,544,403.21x = 39,391,570.80 × 15,491,774.85
  4. Step 4: Simplify right side
    28,544,403.21x = 610,245,345,821,434.38
  5. Step 5: Solve for x
    x = 610,245,345,821,434.38/28,544,403.21
  6. Step 6: Final answer
    x = 21,378,809.06

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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.