Home / 72,590,135.20-108,904,448.40-31,631,999.20

Finding the Fourth Proportional to 72,590,135.20, 108,904,448.40 and 31,631,999.20

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Solution

The fourth proportional to 72,590,135.20, 108,904,448.40 and 31,631,999.20 is: 47,456,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,590,135.20 : 108,904,448.40 = 31,631,999.20 : x
  2. Step 2: Convert to fraction form
    72,590,135.20/108,904,448.40 = 31,631,999.20/x
  3. Step 3: Cross multiply
    72,590,135.20x = 108,904,448.40 × 31,631,999.20
  4. Step 4: Simplify right side
    72,590,135.20x = 3,444,865,424,665,241.50
  5. Step 5: Solve for x
    x = 3,444,865,424,665,241.50/72,590,135.20
  6. Step 6: Final answer
    x = 47,456,385.29

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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.