Home / 18,817,173.72-28,222,393.56-11,973,417.66

Finding the Fourth Proportional to 18,817,173.72, 28,222,393.56 and 11,973,417.66

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Solution

The fourth proportional to 18,817,173.72, 28,222,393.56 and 11,973,417.66 is: 17,957,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817,173.72 : 28,222,393.56 = 11,973,417.66 : x
  2. Step 2: Convert to fraction form
    18,817,173.72/28,222,393.56 = 11,973,417.66/x
  3. Step 3: Cross multiply
    18,817,173.72x = 28,222,393.56 × 11,973,417.66
  4. Step 4: Simplify right side
    18,817,173.72x = 337,918,505,458,774.25
  5. Step 5: Solve for x
    x = 337,918,505,458,774.25/18,817,173.72
  6. Step 6: Final answer
    x = 17,957,984.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.