Home / 72,707,949.56-100,333,468.62-39,666,231.80

Finding the Fourth Proportional to 72,707,949.56, 100,333,468.62 and 39,666,231.80

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Solution

The fourth proportional to 72,707,949.56, 100,333,468.62 and 39,666,231.80 is: 54,737,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,707,949.56 : 100,333,468.62 = 39,666,231.80 : x
  2. Step 2: Convert to fraction form
    72,707,949.56/100,333,468.62 = 39,666,231.80/x
  3. Step 3: Cross multiply
    72,707,949.56x = 100,333,468.62 × 39,666,231.80
  4. Step 4: Simplify right side
    72,707,949.56x = 3,979,850,623,578,946
  5. Step 5: Solve for x
    x = 3,979,850,623,578,946/72,707,949.56
  6. Step 6: Final answer
    x = 54,737,489.47

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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.