Home / 139,923,694.24-209,916,247.92-42,886,700.80

Finding the Fourth Proportional to 139,923,694.24, 209,916,247.92 and 42,886,700.80

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Solution

The fourth proportional to 139,923,694.24, 209,916,247.92 and 42,886,700.80 is: 64,339,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,923,694.24 : 209,916,247.92 = 42,886,700.80 : x
  2. Step 2: Convert to fraction form
    139,923,694.24/209,916,247.92 = 42,886,700.80/x
  3. Step 3: Cross multiply
    139,923,694.24x = 209,916,247.92 × 42,886,700.80
  4. Step 4: Simplify right side
    139,923,694.24x = 9,002,615,317,603,661
  5. Step 5: Solve for x
    x = 9,002,615,317,603,661/139,923,694.24
  6. Step 6: Final answer
    x = 64,339,462.78

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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.