Home / 141,101,956.84-194,714,119.20-78,382,120

Finding the Fourth Proportional to 141,101,956.84, 194,714,119.20 and 78,382,120

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Solution

The fourth proportional to 141,101,956.84, 194,714,119.20 and 78,382,120 is: 108,163,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,101,956.84 : 194,714,119.20 = 78,382,120 : x
  2. Step 2: Convert to fraction form
    141,101,956.84/194,714,119.20 = 78,382,120/x
  3. Step 3: Cross multiply
    141,101,956.84x = 194,714,119.20 × 78,382,120
  4. Step 4: Simplify right side
    141,101,956.84x = 15,262,105,456,828,704
  5. Step 5: Solve for x
    x = 15,262,105,456,828,704/141,101,956.84
  6. Step 6: Final answer
    x = 108,163,669.72

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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.