Home / 208,367,930.80-312,463,422.60-100,695,559.60

Finding the Fourth Proportional to 208,367,930.80, 312,463,422.60 and 100,695,559.60

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Solution

The fourth proportional to 208,367,930.80, 312,463,422.60 and 100,695,559.60 is: 151,000,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,367,930.80 : 312,463,422.60 = 100,695,559.60 : x
  2. Step 2: Convert to fraction form
    208,367,930.80/312,463,422.60 = 100,695,559.60/x
  3. Step 3: Cross multiply
    208,367,930.80x = 312,463,422.60 × 100,695,559.60
  4. Step 4: Simplify right side
    208,367,930.80x = 31,463,679,193,238,288
  5. Step 5: Solve for x
    x = 31,463,679,193,238,288/208,367,930.80
  6. Step 6: Final answer
    x = 151,000,583.79

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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.