Home / 75,259,979.65-112,889,749.87-20,672,617.30

Finding the Fourth Proportional to 75,259,979.65, 112,889,749.87 and 20,672,617.30

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Solution

The fourth proportional to 75,259,979.65, 112,889,749.87 and 20,672,617.30 is: 31,008,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,259,979.65 : 112,889,749.87 = 20,672,617.30 : x
  2. Step 2: Convert to fraction form
    75,259,979.65/112,889,749.87 = 20,672,617.30/x
  3. Step 3: Cross multiply
    75,259,979.65x = 112,889,749.87 × 20,672,617.30
  4. Step 4: Simplify right side
    75,259,979.65x = 2,333,726,595,782,671
  5. Step 5: Solve for x
    x = 2,333,726,595,782,671/75,259,979.65
  6. Step 6: Final answer
    x = 31,008,865.62

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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.