Home / 19,978,245-27,570,002.70-10,810,887.75

Finding the Fourth Proportional to 19,978,245, 27,570,002.70 and 10,810,887.75

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Solution

The fourth proportional to 19,978,245, 27,570,002.70 and 10,810,887.75 is: 14,919,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,245 : 27,570,002.70 = 10,810,887.75 : x
  2. Step 2: Convert to fraction form
    19,978,245/27,570,002.70 = 10,810,887.75/x
  3. Step 3: Cross multiply
    19,978,245x = 27,570,002.70 × 10,810,887.75
  4. Step 4: Simplify right side
    19,978,245x = 298,056,204,497,437.75
  5. Step 5: Solve for x
    x = 298,056,204,497,437.75/19,978,245
  6. Step 6: Final answer
    x = 14,919,038.41

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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.