Home / 21,960,393-30,305,345.16-12,171,469.14

Finding the Fourth Proportional to 21,960,393, 30,305,345.16 and 12,171,469.14

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Solution

The fourth proportional to 21,960,393, 30,305,345.16 and 12,171,469.14 is: 16,796,628.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960,393 : 30,305,345.16 = 12,171,469.14 : x
  2. Step 2: Convert to fraction form
    21,960,393/30,305,345.16 = 12,171,469.14/x
  3. Step 3: Cross multiply
    21,960,393x = 30,305,345.16 × 12,171,469.14
  4. Step 4: Simplify right side
    21,960,393x = 368,860,573,391,988.38
  5. Step 5: Solve for x
    x = 368,860,573,391,988.38/21,960,393
  6. Step 6: Final answer
    x = 16,796,628.98

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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.