Home / 28,733,601.20-39,653,209.52-15,681,697.78

Finding the Fourth Proportional to 28,733,601.20, 39,653,209.52 and 15,681,697.78

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Solution

The fourth proportional to 28,733,601.20, 39,653,209.52 and 15,681,697.78 is: 21,641,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,733,601.20 : 39,653,209.52 = 15,681,697.78 : x
  2. Step 2: Convert to fraction form
    28,733,601.20/39,653,209.52 = 15,681,697.78/x
  3. Step 3: Cross multiply
    28,733,601.20x = 39,653,209.52 × 15,681,697.78
  4. Step 4: Simplify right side
    28,733,601.20x = 621,829,647,699,658.88
  5. Step 5: Solve for x
    x = 621,829,647,699,658.88/28,733,601.20
  6. Step 6: Final answer
    x = 21,641,201.30

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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.