Home / 28,477,082.08-39,287,526.60-21,052,571.68

Finding the Fourth Proportional to 28,477,082.08, 39,287,526.60 and 21,052,571.68

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Solution

The fourth proportional to 28,477,082.08, 39,287,526.60 and 21,052,571.68 is: 29,044,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477,082.08 : 39,287,526.60 = 21,052,571.68 : x
  2. Step 2: Convert to fraction form
    28,477,082.08/39,287,526.60 = 21,052,571.68/x
  3. Step 3: Cross multiply
    28,477,082.08x = 39,287,526.60 × 21,052,571.68
  4. Step 4: Simplify right side
    28,477,082.08x = 827,103,469,876,406.75
  5. Step 5: Solve for x
    x = 827,103,469,876,406.75/28,477,082.08
  6. Step 6: Final answer
    x = 29,044,530.18

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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.