Home / 38,893,318.80-53,672,669.76-21,489,540.12

Finding the Fourth Proportional to 38,893,318.80, 53,672,669.76 and 21,489,540.12

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Solution

The fourth proportional to 38,893,318.80, 53,672,669.76 and 21,489,540.12 is: 29,655,504.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,893,318.80 : 53,672,669.76 = 21,489,540.12 : x
  2. Step 2: Convert to fraction form
    38,893,318.80/53,672,669.76 = 21,489,540.12/x
  3. Step 3: Cross multiply
    38,893,318.80x = 53,672,669.76 × 21,489,540.12
  4. Step 4: Simplify right side
    38,893,318.80x = 1,153,400,990,155,030.75
  5. Step 5: Solve for x
    x = 1,153,400,990,155,030.75/38,893,318.80
  6. Step 6: Final answer
    x = 29,655,504.49

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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.