Home / 85,590,169.31-128,468,274.21-41,305,619.53

Finding the Fourth Proportional to 85,590,169.31, 128,468,274.21 and 41,305,619.53

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Solution

The fourth proportional to 85,590,169.31, 128,468,274.21 and 41,305,619.53 is: 61,998,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590,169.31 : 128,468,274.21 = 41,305,619.53 : x
  2. Step 2: Convert to fraction form
    85,590,169.31/128,468,274.21 = 41,305,619.53/x
  3. Step 3: Cross multiply
    85,590,169.31x = 128,468,274.21 × 41,305,619.53
  4. Step 4: Simplify right side
    85,590,169.31x = 5,306,461,656,193,971
  5. Step 5: Solve for x
    x = 5,306,461,656,193,971/85,590,169.31
  6. Step 6: Final answer
    x = 61,998,494.67

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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.