Home / 72,775,478.39-100,431,558.51-39,737,036.97

Finding the Fourth Proportional to 72,775,478.39, 100,431,558.51 and 39,737,036.97

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Solution

The fourth proportional to 72,775,478.39, 100,431,558.51 and 39,737,036.97 is: 54,837,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,775,478.39 : 100,431,558.51 = 39,737,036.97 : x
  2. Step 2: Convert to fraction form
    72,775,478.39/100,431,558.51 = 39,737,036.97/x
  3. Step 3: Cross multiply
    72,775,478.39x = 100,431,558.51 × 39,737,036.97
  4. Step 4: Simplify right side
    72,775,478.39x = 3,990,852,553,466,588
  5. Step 5: Solve for x
    x = 3,990,852,553,466,588/72,775,478.39
  6. Step 6: Final answer
    x = 54,837,874.54

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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.