Home / 285,942,397.46-428,858,739.74-111,065,237.78

Finding the Fourth Proportional to 285,942,397.46, 428,858,739.74 and 111,065,237.78

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Solution

The fourth proportional to 285,942,397.46, 428,858,739.74 and 111,065,237.78 is: 166,576,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,942,397.46 : 428,858,739.74 = 111,065,237.78 : x
  2. Step 2: Convert to fraction form
    285,942,397.46/428,858,739.74 = 111,065,237.78/x
  3. Step 3: Cross multiply
    285,942,397.46x = 428,858,739.74 × 111,065,237.78
  4. Step 4: Simplify right side
    285,942,397.46x = 47,631,297,903,254,240
  5. Step 5: Solve for x
    x = 47,631,297,903,254,240/285,942,397.46
  6. Step 6: Final answer
    x = 166,576,549.43

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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.