Home / 69,869,505.11-104,805,343.91-20,690,333.26

Finding the Fourth Proportional to 69,869,505.11, 104,805,343.91 and 20,690,333.26

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Solution

The fourth proportional to 69,869,505.11, 104,805,343.91 and 20,690,333.26 is: 31,035,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,869,505.11 : 104,805,343.91 = 20,690,333.26 : x
  2. Step 2: Convert to fraction form
    69,869,505.11/104,805,343.91 = 20,690,333.26/x
  3. Step 3: Cross multiply
    69,869,505.11x = 104,805,343.91 × 20,690,333.26
  4. Step 4: Simplify right side
    69,869,505.11x = 2,168,457,492,716,523.75
  5. Step 5: Solve for x
    x = 2,168,457,492,716,523.75/69,869,505.11
  6. Step 6: Final answer
    x = 31,035,821.56

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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.