Home / 20,130,685.07-27,781,131.87-11,429,667.27

Finding the Fourth Proportional to 20,130,685.07, 27,781,131.87 and 11,429,667.27

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Solution

The fourth proportional to 20,130,685.07, 27,781,131.87 and 11,429,667.27 is: 15,773,387.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,685.07 : 27,781,131.87 = 11,429,667.27 : x
  2. Step 2: Convert to fraction form
    20,130,685.07/27,781,131.87 = 11,429,667.27/x
  3. Step 3: Cross multiply
    20,130,685.07x = 27,781,131.87 × 11,429,667.27
  4. Step 4: Simplify right side
    20,130,685.07x = 317,529,093,658,092.88
  5. Step 5: Solve for x
    x = 317,529,093,658,092.88/20,130,685.07
  6. Step 6: Final answer
    x = 15,773,387.38

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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.