Home / 21,900,997.37-30,214,247.67-12,606,343.36

Finding the Fourth Proportional to 21,900,997.37, 30,214,247.67 and 12,606,343.36

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Solution

The fourth proportional to 21,900,997.37, 30,214,247.67 and 12,606,343.36 is: 17,391,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900,997.37 : 30,214,247.67 = 12,606,343.36 : x
  2. Step 2: Convert to fraction form
    21,900,997.37/30,214,247.67 = 12,606,343.36/x
  3. Step 3: Cross multiply
    21,900,997.37x = 30,214,247.67 × 12,606,343.36
  4. Step 4: Simplify right side
    21,900,997.37x = 380,891,180,416,564.38
  5. Step 5: Solve for x
    x = 380,891,180,416,564.38/21,900,997.37
  6. Step 6: Final answer
    x = 17,391,499.30

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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.