Home / 100,887,266.70-151,330,900.05-66,449,889.90

Finding the Fourth Proportional to 100,887,266.70, 151,330,900.05 and 66,449,889.90

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Solution

The fourth proportional to 100,887,266.70, 151,330,900.05 and 66,449,889.90 is: 99,674,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,887,266.70 : 151,330,900.05 = 66,449,889.90 : x
  2. Step 2: Convert to fraction form
    100,887,266.70/151,330,900.05 = 66,449,889.90/x
  3. Step 3: Cross multiply
    100,887,266.70x = 151,330,900.05 × 66,449,889.90
  4. Step 4: Simplify right side
    100,887,266.70x = 10,055,921,646,790,406
  5. Step 5: Solve for x
    x = 10,055,921,646,790,406/100,887,266.70
  6. Step 6: Final answer
    x = 99,674,834.85

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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.