Home / 218,613,305.43-327,977,447.63-78,567,907.50

Finding the Fourth Proportional to 218,613,305.43, 327,977,447.63 and 78,567,907.50

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Solution

The fourth proportional to 218,613,305.43, 327,977,447.63 and 78,567,907.50 is: 117,872,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,613,305.43 : 327,977,447.63 = 78,567,907.50 : x
  2. Step 2: Convert to fraction form
    218,613,305.43/327,977,447.63 = 78,567,907.50/x
  3. Step 3: Cross multiply
    218,613,305.43x = 327,977,447.63 × 78,567,907.50
  4. Step 4: Simplify right side
    218,613,305.43x = 25,768,501,767,087,096
  5. Step 5: Solve for x
    x = 25,768,501,767,087,096/218,613,305.43
  6. Step 6: Final answer
    x = 117,872,522.52

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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.