Home / 81,617,148.48-122,442,752.16-43,268,249.28

Finding the Fourth Proportional to 81,617,148.48, 122,442,752.16 and 43,268,249.28

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Solution

The fourth proportional to 81,617,148.48, 122,442,752.16 and 43,268,249.28 is: 64,911,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,617,148.48 : 122,442,752.16 = 43,268,249.28 : x
  2. Step 2: Convert to fraction form
    81,617,148.48/122,442,752.16 = 43,268,249.28/x
  3. Step 3: Cross multiply
    81,617,148.48x = 122,442,752.16 × 43,268,249.28
  4. Step 4: Simplify right side
    81,617,148.48x = 5,297,883,522,988,138
  5. Step 5: Solve for x
    x = 5,297,883,522,988,138/81,617,148.48
  6. Step 6: Final answer
    x = 64,911,401.85

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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.