Home / 39,959,157.28-55,143,633.36-21,624,443.68

Finding the Fourth Proportional to 39,959,157.28, 55,143,633.36 and 21,624,443.68

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Solution

The fourth proportional to 39,959,157.28, 55,143,633.36 and 21,624,443.68 is: 29,841,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959,157.28 : 55,143,633.36 = 21,624,443.68 : x
  2. Step 2: Convert to fraction form
    39,959,157.28/55,143,633.36 = 21,624,443.68/x
  3. Step 3: Cross multiply
    39,959,157.28x = 55,143,633.36 × 21,624,443.68
  4. Step 4: Simplify right side
    39,959,157.28x = 1,192,450,393,903,889.25
  5. Step 5: Solve for x
    x = 1,192,450,393,903,889.25/39,959,157.28
  6. Step 6: Final answer
    x = 29,841,730.28

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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.