Home / 213,241,019.52-319,619,723.22-97,987,409.58

Finding the Fourth Proportional to 213,241,019.52, 319,619,723.22 and 97,987,409.58

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Solution

The fourth proportional to 213,241,019.52, 319,619,723.22 and 97,987,409.58 is: 146,870,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,241,019.52 : 319,619,723.22 = 97,987,409.58 : x
  2. Step 2: Convert to fraction form
    213,241,019.52/319,619,723.22 = 97,987,409.58/x
  3. Step 3: Cross multiply
    213,241,019.52x = 319,619,723.22 × 97,987,409.58
  4. Step 4: Simplify right side
    213,241,019.52x = 31,318,708,729,004,380
  5. Step 5: Solve for x
    x = 31,318,708,729,004,380/213,241,019.52
  6. Step 6: Final answer
    x = 146,870,000.90

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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.