Home / 55,012,082.70-82,520,865.08-20,936,069.58

Finding the Fourth Proportional to 55,012,082.70, 82,520,865.08 and 20,936,069.58

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Solution

The fourth proportional to 55,012,082.70, 82,520,865.08 and 20,936,069.58 is: 31,405,147.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,012,082.70 : 82,520,865.08 = 20,936,069.58 : x
  2. Step 2: Convert to fraction form
    55,012,082.70/82,520,865.08 = 20,936,069.58/x
  3. Step 3: Cross multiply
    55,012,082.70x = 82,520,865.08 × 20,936,069.58
  4. Step 4: Simplify right side
    55,012,082.70x = 1,727,662,573,116,672
  5. Step 5: Solve for x
    x = 1,727,662,573,116,672/55,012,082.70
  6. Step 6: Final answer
    x = 31,405,147.53

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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.