Home / 31,008,921-46,509,832.38-8,291,589.72

Finding the Fourth Proportional to 31,008,921, 46,509,832.38 and 8,291,589.72

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Solution

The fourth proportional to 31,008,921, 46,509,832.38 and 8,291,589.72 is: 12,436,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,008,921 : 46,509,832.38 = 8,291,589.72 : x
  2. Step 2: Convert to fraction form
    31,008,921/46,509,832.38 = 8,291,589.72/x
  3. Step 3: Cross multiply
    31,008,921x = 46,509,832.38 × 8,291,589.72
  4. Step 4: Simplify right side
    31,008,921x = 385,640,448,040,931.12
  5. Step 5: Solve for x
    x = 385,640,448,040,931.12/31,008,921
  6. Step 6: Final answer
    x = 12,436,435.57

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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.