Home / 19,201,617.92-28,802,456.12-7,842,066.56

Finding the Fourth Proportional to 19,201,617.92, 28,802,456.12 and 7,842,066.56

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Solution

The fourth proportional to 19,201,617.92, 28,802,456.12 and 7,842,066.56 is: 11,763,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201,617.92 : 28,802,456.12 = 7,842,066.56 : x
  2. Step 2: Convert to fraction form
    19,201,617.92/28,802,456.12 = 7,842,066.56/x
  3. Step 3: Cross multiply
    19,201,617.92x = 28,802,456.12 × 7,842,066.56
  4. Step 4: Simplify right side
    19,201,617.92x = 225,870,777,984,519.34
  5. Step 5: Solve for x
    x = 225,870,777,984,519.34/19,201,617.92
  6. Step 6: Final answer
    x = 11,763,111.78

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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.