Home / 142,165,999.68-213,327,688.38-69,383,383.26

Finding the Fourth Proportional to 142,165,999.68, 213,327,688.38 and 69,383,383.26

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Solution

The fourth proportional to 142,165,999.68, 213,327,688.38 and 69,383,383.26 is: 104,113,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,165,999.68 : 213,327,688.38 = 69,383,383.26 : x
  2. Step 2: Convert to fraction form
    142,165,999.68/213,327,688.38 = 69,383,383.26/x
  3. Step 3: Cross multiply
    142,165,999.68x = 213,327,688.38 × 69,383,383.26
  4. Step 4: Simplify right side
    142,165,999.68x = 14,801,396,762,839,390
  5. Step 5: Solve for x
    x = 14,801,396,762,839,390/142,165,999.68
  6. Step 6: Final answer
    x = 104,113,478.58

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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.