Home / 28,879,672.92-39,854,389.50-15,826,825.84

Finding the Fourth Proportional to 28,879,672.92, 39,854,389.50 and 15,826,825.84

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Solution

The fourth proportional to 28,879,672.92, 39,854,389.50 and 15,826,825.84 is: 21,841,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879,672.92 : 39,854,389.50 = 15,826,825.84 : x
  2. Step 2: Convert to fraction form
    28,879,672.92/39,854,389.50 = 15,826,825.84/x
  3. Step 3: Cross multiply
    28,879,672.92x = 39,854,389.50 × 15,826,825.84
  4. Step 4: Simplify right side
    28,879,672.92x = 630,768,481,576,024.62
  5. Step 5: Solve for x
    x = 630,768,481,576,024.62/28,879,672.92
  6. Step 6: Final answer
    x = 21,841,261.27

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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.