Home / 139,992,605.20-209,988,907.80-131,034,653.20

Finding the Fourth Proportional to 139,992,605.20, 209,988,907.80 and 131,034,653.20

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Solution

The fourth proportional to 139,992,605.20, 209,988,907.80 and 131,034,653.20 is: 196,551,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,992,605.20 : 209,988,907.80 = 131,034,653.20 : x
  2. Step 2: Convert to fraction form
    139,992,605.20/209,988,907.80 = 131,034,653.20/x
  3. Step 3: Cross multiply
    139,992,605.20x = 209,988,907.80 × 131,034,653.20
  4. Step 4: Simplify right side
    139,992,605.20x = 27,515,823,709,419,776
  5. Step 5: Solve for x
    x = 27,515,823,709,419,776/139,992,605.20
  6. Step 6: Final answer
    x = 196,551,979.80

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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.