Home / 81,022,350.33-111,803,748.39-45,738,210.87

Finding the Fourth Proportional to 81,022,350.33, 111,803,748.39 and 45,738,210.87

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Solution

The fourth proportional to 81,022,350.33, 111,803,748.39 and 45,738,210.87 is: 63,114,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,022,350.33 : 111,803,748.39 = 45,738,210.87 : x
  2. Step 2: Convert to fraction form
    81,022,350.33/111,803,748.39 = 45,738,210.87/x
  3. Step 3: Cross multiply
    81,022,350.33x = 111,803,748.39 × 45,738,210.87
  4. Step 4: Simplify right side
    81,022,350.33x = 5,113,703,419,918,243
  5. Step 5: Solve for x
    x = 5,113,703,419,918,243/81,022,350.33
  6. Step 6: Final answer
    x = 63,114,725.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.