Home / 15,396,560.63-21,212,409.15-12,638,882.12

Finding the Fourth Proportional to 15,396,560.63, 21,212,409.15 and 12,638,882.12

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Solution

The fourth proportional to 15,396,560.63, 21,212,409.15 and 12,638,882.12 is: 17,413,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396,560.63 : 21,212,409.15 = 12,638,882.12 : x
  2. Step 2: Convert to fraction form
    15,396,560.63/21,212,409.15 = 12,638,882.12/x
  3. Step 3: Cross multiply
    15,396,560.63x = 21,212,409.15 × 12,638,882.12
  4. Step 4: Simplify right side
    15,396,560.63x = 268,101,138,621,997.34
  5. Step 5: Solve for x
    x = 268,101,138,621,997.34/15,396,560.63
  6. Step 6: Final answer
    x = 17,413,053.80

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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.