Home / 15,223,778.92-21,009,103.14-8,347,850.92

Finding the Fourth Proportional to 15,223,778.92, 21,009,103.14 and 8,347,850.92

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Solution

The fourth proportional to 15,223,778.92, 21,009,103.14 and 8,347,850.92 is: 11,520,192.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223,778.92 : 21,009,103.14 = 8,347,850.92 : x
  2. Step 2: Convert to fraction form
    15,223,778.92/21,009,103.14 = 8,347,850.92/x
  3. Step 3: Cross multiply
    15,223,778.92x = 21,009,103.14 × 8,347,850.92
  4. Step 4: Simplify right side
    15,223,778.92x = 175,380,860,975,623.91
  5. Step 5: Solve for x
    x = 175,380,860,975,623.91/15,223,778.92
  6. Step 6: Final answer
    x = 11,520,192.32

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Double scale
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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.