Home / 28,699,950.44-39,605,903.72-15,647,205.92

Finding the Fourth Proportional to 28,699,950.44, 39,605,903.72 and 15,647,205.92

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Solution

The fourth proportional to 28,699,950.44, 39,605,903.72 and 15,647,205.92 is: 21,593,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699,950.44 : 39,605,903.72 = 15,647,205.92 : x
  2. Step 2: Convert to fraction form
    28,699,950.44/39,605,903.72 = 15,647,205.92/x
  3. Step 3: Cross multiply
    28,699,950.44x = 39,605,903.72 × 15,647,205.92
  4. Step 4: Simplify right side
    28,699,950.44x = 619,721,731,154,534
  5. Step 5: Solve for x
    x = 619,721,731,154,534/28,699,950.44
  6. Step 6: Final answer
    x = 21,593,128.97

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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.