Home / 28,410,480.29-39,203,537.08-20,972,099.63

Finding the Fourth Proportional to 28,410,480.29, 39,203,537.08 and 20,972,099.63

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Solution

The fourth proportional to 28,410,480.29, 39,203,537.08 and 20,972,099.63 is: 28,939,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410,480.29 : 39,203,537.08 = 20,972,099.63 : x
  2. Step 2: Convert to fraction form
    28,410,480.29/39,203,537.08 = 20,972,099.63/x
  3. Step 3: Cross multiply
    28,410,480.29x = 39,203,537.08 × 20,972,099.63
  4. Step 4: Simplify right side
    28,410,480.29x = 822,180,485,490,159.25
  5. Step 5: Solve for x
    x = 822,180,485,490,159.25/28,410,480.29
  6. Step 6: Final answer
    x = 28,939,337.78

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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.