Home / 80,047,349.81-120,069,756.80-25,459,147.25

Finding the Fourth Proportional to 80,047,349.81, 120,069,756.80 and 25,459,147.25

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Solution

The fourth proportional to 80,047,349.81, 120,069,756.80 and 25,459,147.25 is: 38,188,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,047,349.81 : 120,069,756.80 = 25,459,147.25 : x
  2. Step 2: Convert to fraction form
    80,047,349.81/120,069,756.80 = 25,459,147.25/x
  3. Step 3: Cross multiply
    80,047,349.81x = 120,069,756.80 × 25,459,147.25
  4. Step 4: Simplify right side
    80,047,349.81x = 3,056,873,618,515,593
  5. Step 5: Solve for x
    x = 3,056,873,618,515,593/80,047,349.81
  6. Step 6: Final answer
    x = 38,188,317.61

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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.