Home / 139,969,205.70-209,953,808.55-127,214,621.70

Finding the Fourth Proportional to 139,969,205.70, 209,953,808.55 and 127,214,621.70

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Solution

The fourth proportional to 139,969,205.70, 209,953,808.55 and 127,214,621.70 is: 190,821,932.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,205.70 : 209,953,808.55 = 127,214,621.70 : x
  2. Step 2: Convert to fraction form
    139,969,205.70/209,953,808.55 = 127,214,621.70/x
  3. Step 3: Cross multiply
    139,969,205.70x = 209,953,808.55 × 127,214,621.70
  4. Step 4: Simplify right side
    139,969,205.70x = 26,709,194,329,162,476
  5. Step 5: Solve for x
    x = 26,709,194,329,162,476/139,969,205.70
  6. Step 6: Final answer
    x = 190,821,932.55

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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.