Home / 21,268,239.03-29,350,289.43-12,100,881.78

Finding the Fourth Proportional to 21,268,239.03, 29,350,289.43 and 12,100,881.78

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Solution

The fourth proportional to 21,268,239.03, 29,350,289.43 and 12,100,881.78 is: 16,699,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268,239.03 : 29,350,289.43 = 12,100,881.78 : x
  2. Step 2: Convert to fraction form
    21,268,239.03/29,350,289.43 = 12,100,881.78/x
  3. Step 3: Cross multiply
    21,268,239.03x = 29,350,289.43 × 12,100,881.78
  4. Step 4: Simplify right side
    21,268,239.03x = 355,164,382,601,213.56
  5. Step 5: Solve for x
    x = 355,164,382,601,213.56/21,268,239.03
  6. Step 6: Final answer
    x = 16,699,284.89

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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.