Home / 39,985,190.73-55,179,602.87-21,650,432.49

Finding the Fourth Proportional to 39,985,190.73, 55,179,602.87 and 21,650,432.49

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Solution

The fourth proportional to 39,985,190.73, 55,179,602.87 and 21,650,432.49 is: 29,877,618.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985,190.73 : 55,179,602.87 = 21,650,432.49 : x
  2. Step 2: Convert to fraction form
    39,985,190.73/55,179,602.87 = 21,650,432.49/x
  3. Step 3: Cross multiply
    39,985,190.73x = 55,179,602.87 × 21,650,432.49
  4. Step 4: Simplify right side
    39,985,190.73x = 1,194,662,266,653,693
  5. Step 5: Solve for x
    x = 1,194,662,266,653,693/39,985,190.73
  6. Step 6: Final answer
    x = 29,877,618.31

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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.