Home / 142,165,866.23-213,327,487.60-69,383,249.81

Finding the Fourth Proportional to 142,165,866.23, 213,327,487.60 and 69,383,249.81

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Solution

The fourth proportional to 142,165,866.23, 213,327,487.60 and 69,383,249.81 is: 104,113,278.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,165,866.23 : 213,327,487.60 = 69,383,249.81 : x
  2. Step 2: Convert to fraction form
    142,165,866.23/213,327,487.60 = 69,383,249.81/x
  3. Step 3: Cross multiply
    142,165,866.23x = 213,327,487.60 × 69,383,249.81
  4. Step 4: Simplify right side
    142,165,866.23x = 14,801,354,363,490,478
  5. Step 5: Solve for x
    x = 14,801,354,363,490,478/142,165,866.23
  6. Step 6: Final answer
    x = 104,113,278.07

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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.