Home / 9,218,749.80-12,721,918.68-5,088,705.78

Finding the Fourth Proportional to 9,218,749.80, 12,721,918.68 and 5,088,705.78

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Solution

The fourth proportional to 9,218,749.80, 12,721,918.68 and 5,088,705.78 is: 7,022,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218,749.80 : 12,721,918.68 = 5,088,705.78 : x
  2. Step 2: Convert to fraction form
    9,218,749.80/12,721,918.68 = 5,088,705.78/x
  3. Step 3: Cross multiply
    9,218,749.80x = 12,721,918.68 × 5,088,705.78
  4. Step 4: Simplify right side
    9,218,749.80x = 64,738,101,119,605.97
  5. Step 5: Solve for x
    x = 64,738,101,119,605.97/9,218,749.80
  6. Step 6: Final answer
    x = 7,022,438.24

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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.