Home / 20,531,707.02-28,330,789.83-11,364,327.90

Finding the Fourth Proportional to 20,531,707.02, 28,330,789.83 and 11,364,327.90

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Solution

The fourth proportional to 20,531,707.02, 28,330,789.83 and 11,364,327.90 is: 15,681,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531,707.02 : 28,330,789.83 = 11,364,327.90 : x
  2. Step 2: Convert to fraction form
    20,531,707.02/28,330,789.83 = 11,364,327.90/x
  3. Step 3: Cross multiply
    20,531,707.02x = 28,330,789.83 × 11,364,327.90
  4. Step 4: Simplify right side
    20,531,707.02x = 321,960,385,294,105.25
  5. Step 5: Solve for x
    x = 321,960,385,294,105.25/20,531,707.02
  6. Step 6: Final answer
    x = 15,681,130.90

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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.