Home / 38,479,517.16-53,101,762.32-20,838,556.68

Finding the Fourth Proportional to 38,479,517.16, 53,101,762.32 and 20,838,556.68

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Solution

The fourth proportional to 38,479,517.16, 53,101,762.32 and 20,838,556.68 is: 28,757,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479,517.16 : 53,101,762.32 = 20,838,556.68 : x
  2. Step 2: Convert to fraction form
    38,479,517.16/53,101,762.32 = 20,838,556.68/x
  3. Step 3: Cross multiply
    38,479,517.16x = 53,101,762.32 × 20,838,556.68
  4. Step 4: Simplify right side
    38,479,517.16x = 1,106,564,083,913,208.25
  5. Step 5: Solve for x
    x = 1,106,564,083,913,208.25/38,479,517.16
  6. Step 6: Final answer
    x = 28,757,223.73

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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.