Home / 68,178,081.54-94,086,039.85-38,409,086.76

Finding the Fourth Proportional to 68,178,081.54, 94,086,039.85 and 38,409,086.76

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Solution

The fourth proportional to 68,178,081.54, 94,086,039.85 and 38,409,086.76 is: 53,004,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,178,081.54 : 94,086,039.85 = 38,409,086.76 : x
  2. Step 2: Convert to fraction form
    68,178,081.54/94,086,039.85 = 38,409,086.76/x
  3. Step 3: Cross multiply
    68,178,081.54x = 94,086,039.85 × 38,409,086.76
  4. Step 4: Simplify right side
    68,178,081.54x = 3,613,758,867,956,642
  5. Step 5: Solve for x
    x = 3,613,758,867,956,642/68,178,081.54
  6. Step 6: Final answer
    x = 53,004,701.61

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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.