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Finding the Fourth Proportional to 121,321,703, 181,982,554.50 and 40,542,671

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Solution

The fourth proportional to 121,321,703, 181,982,554.50 and 40,542,671 is: 60,814,006.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321,703 : 181,982,554.50 = 40,542,671 : x
  2. Step 2: Convert to fraction form
    121,321,703/181,982,554.50 = 40,542,671/x
  3. Step 3: Cross multiply
    121,321,703x = 181,982,554.50 × 40,542,671
  4. Step 4: Simplify right side
    121,321,703x = 7,378,058,834,833,070
  5. Step 5: Solve for x
    x = 7,378,058,834,833,070/121,321,703
  6. Step 6: Final answer
    x = 60,814,006.50

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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.