Home / 21,505,859.64-29,677,964.22-11,716,283.88

Finding the Fourth Proportional to 21,505,859.64, 29,677,964.22 and 11,716,283.88

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Solution

The fourth proportional to 21,505,859.64, 29,677,964.22 and 11,716,283.88 is: 16,168,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505,859.64 : 29,677,964.22 = 11,716,283.88 : x
  2. Step 2: Convert to fraction form
    21,505,859.64/29,677,964.22 = 11,716,283.88/x
  3. Step 3: Cross multiply
    21,505,859.64x = 29,677,964.22 × 11,716,283.88
  4. Step 4: Simplify right side
    21,505,859.64x = 347,715,453,782,002.81
  5. Step 5: Solve for x
    x = 347,715,453,782,002.81/21,505,859.64
  6. Step 6: Final answer
    x = 16,168,405.24

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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.