Home / 54,640,015.40-81,904,035.90-31,909,212.20

Finding the Fourth Proportional to 54,640,015.40, 81,904,035.90 and 31,909,212.20

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Solution

The fourth proportional to 54,640,015.40, 81,904,035.90 and 31,909,212.20 is: 47,831,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,640,015.40 : 81,904,035.90 = 31,909,212.20 : x
  2. Step 2: Convert to fraction form
    54,640,015.40/81,904,035.90 = 31,909,212.20/x
  3. Step 3: Cross multiply
    54,640,015.40x = 81,904,035.90 × 31,909,212.20
  4. Step 4: Simplify right side
    54,640,015.40x = 2,613,493,261,569,518
  5. Step 5: Solve for x
    x = 2,613,493,261,569,518/54,640,015.40
  6. Step 6: Final answer
    x = 47,831,122.35

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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.