Home / 139,979,590.80-209,969,386.20-132,043,405.20

Finding the Fourth Proportional to 139,979,590.80, 209,969,386.20 and 132,043,405.20

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Solution

The fourth proportional to 139,979,590.80, 209,969,386.20 and 132,043,405.20 is: 198,065,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,979,590.80 : 209,969,386.20 = 132,043,405.20 : x
  2. Step 2: Convert to fraction form
    139,979,590.80/209,969,386.20 = 132,043,405.20/x
  3. Step 3: Cross multiply
    139,979,590.80x = 209,969,386.20 × 132,043,405.20
  4. Step 4: Simplify right side
    139,979,590.80x = 27,725,072,741,601,888
  5. Step 5: Solve for x
    x = 27,725,072,741,601,888/139,979,590.80
  6. Step 6: Final answer
    x = 198,065,107.80

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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.