Home / 66,143,412.93-91,283,022.78-39,682,762.59

Finding the Fourth Proportional to 66,143,412.93, 91,283,022.78 and 39,682,762.59

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Solution

The fourth proportional to 66,143,412.93, 91,283,022.78 and 39,682,762.59 is: 54,765,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143,412.93 : 91,283,022.78 = 39,682,762.59 : x
  2. Step 2: Convert to fraction form
    66,143,412.93/91,283,022.78 = 39,682,762.59/x
  3. Step 3: Cross multiply
    66,143,412.93x = 91,283,022.78 × 39,682,762.59
  4. Step 4: Simplify right side
    66,143,412.93x = 3,622,362,521,476,302
  5. Step 5: Solve for x
    x = 3,622,362,521,476,302/66,143,412.93
  6. Step 6: Final answer
    x = 54,765,279.88

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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.