Home / 217,833,431.76-300,610,131.12-120,048,287.76

Finding the Fourth Proportional to 217,833,431.76, 300,610,131.12 and 120,048,287.76

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Solution

The fourth proportional to 217,833,431.76, 300,610,131.12 and 120,048,287.76 is: 165,666,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,833,431.76 : 300,610,131.12 = 120,048,287.76 : x
  2. Step 2: Convert to fraction form
    217,833,431.76/300,610,131.12 = 120,048,287.76/x
  3. Step 3: Cross multiply
    217,833,431.76x = 300,610,131.12 × 120,048,287.76
  4. Step 4: Simplify right side
    217,833,431.76x = 36,087,731,524,265,096
  5. Step 5: Solve for x
    x = 36,087,731,524,265,096/217,833,431.76
  6. Step 6: Final answer
    x = 165,666,634.51

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1.5x scale

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.