Home / 8,172,639.88-11,278,752.42-4,501,555.72

Finding the Fourth Proportional to 8,172,639.88, 11,278,752.42 and 4,501,555.72

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Solution

The fourth proportional to 8,172,639.88, 11,278,752.42 and 4,501,555.72 is: 6,212,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172,639.88 : 11,278,752.42 = 4,501,555.72 : x
  2. Step 2: Convert to fraction form
    8,172,639.88/11,278,752.42 = 4,501,555.72/x
  3. Step 3: Cross multiply
    8,172,639.88x = 11,278,752.42 × 4,501,555.72
  4. Step 4: Simplify right side
    8,172,639.88x = 50,771,932,470,714.84
  5. Step 5: Solve for x
    x = 50,771,932,470,714.84/8,172,639.88
  6. Step 6: Final answer
    x = 6,212,427.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.