Home / 21,961,602.80-30,308,128.80-12,665,716.64

Finding the Fourth Proportional to 21,961,602.80, 30,308,128.80 and 12,665,716.64

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Solution

The fourth proportional to 21,961,602.80, 30,308,128.80 and 12,665,716.64 is: 17,479,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961,602.80 : 30,308,128.80 = 12,665,716.64 : x
  2. Step 2: Convert to fraction form
    21,961,602.80/30,308,128.80 = 12,665,716.64/x
  3. Step 3: Cross multiply
    21,961,602.80x = 30,308,128.80 × 12,665,716.64
  4. Step 4: Simplify right side
    21,961,602.80x = 383,874,171,269,423.25
  5. Step 5: Solve for x
    x = 383,874,171,269,423.25/21,961,602.80
  6. Step 6: Final answer
    x = 17,479,333.12

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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.