Home / 8,121,678.12-11,207,917.62-4,858,628.76

Finding the Fourth Proportional to 8,121,678.12, 11,207,917.62 and 4,858,628.76

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Solution

The fourth proportional to 8,121,678.12, 11,207,917.62 and 4,858,628.76 is: 6,704,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121,678.12 : 11,207,917.62 = 4,858,628.76 : x
  2. Step 2: Convert to fraction form
    8,121,678.12/11,207,917.62 = 4,858,628.76/x
  3. Step 3: Cross multiply
    8,121,678.12x = 11,207,917.62 × 4,858,628.76
  4. Step 4: Simplify right side
    8,121,678.12x = 54,455,110,888,242.74
  5. Step 5: Solve for x
    x = 54,455,110,888,242.74/8,121,678.12
  6. Step 6: Final answer
    x = 6,704,908.77

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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.