Home / 69,914,122.81-104,871,515.92-21,391,899.21

Finding the Fourth Proportional to 69,914,122.81, 104,871,515.92 and 21,391,899.21

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Solution

The fourth proportional to 69,914,122.81, 104,871,515.92 and 21,391,899.21 is: 32,087,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,914,122.81 : 104,871,515.92 = 21,391,899.21 : x
  2. Step 2: Convert to fraction form
    69,914,122.81/104,871,515.92 = 21,391,899.21/x
  3. Step 3: Cross multiply
    69,914,122.81x = 104,871,515.92 × 21,391,899.21
  4. Step 4: Simplify right side
    69,914,122.81x = 2,243,400,898,507,070.75
  5. Step 5: Solve for x
    x = 2,243,400,898,507,070.75/69,914,122.81
  6. Step 6: Final answer
    x = 32,087,950.31

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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.