Home / 145,550,819.28-200,858,607.24-79,471,112.72

Finding the Fourth Proportional to 145,550,819.28, 200,858,607.24 and 79,471,112.72

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Solution

The fourth proportional to 145,550,819.28, 200,858,607.24 and 79,471,112.72 is: 109,669,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,550,819.28 : 200,858,607.24 = 79,471,112.72 : x
  2. Step 2: Convert to fraction form
    145,550,819.28/200,858,607.24 = 79,471,112.72/x
  3. Step 3: Cross multiply
    145,550,819.28x = 200,858,607.24 × 79,471,112.72
  4. Step 4: Simplify right side
    145,550,819.28x = 15,962,457,016,752,248
  5. Step 5: Solve for x
    x = 15,962,457,016,752,248/145,550,819.28
  6. Step 6: Final answer
    x = 109,669,303.79

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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.