Home / 28,879,671.92-39,854,388.12-15,826,824.84

Finding the Fourth Proportional to 28,879,671.92, 39,854,388.12 and 15,826,824.84

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Solution

The fourth proportional to 28,879,671.92, 39,854,388.12 and 15,826,824.84 is: 21,841,259.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879,671.92 : 39,854,388.12 = 15,826,824.84 : x
  2. Step 2: Convert to fraction form
    28,879,671.92/39,854,388.12 = 15,826,824.84/x
  3. Step 3: Cross multiply
    28,879,671.92x = 39,854,388.12 × 15,826,824.84
  4. Step 4: Simplify right side
    28,879,671.92x = 630,768,419,880,616.88
  5. Step 5: Solve for x
    x = 630,768,419,880,616.88/28,879,671.92
  6. Step 6: Final answer
    x = 21,841,259.89

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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.