Home / 185,665,872.38-278,508,059.16-70,659,328.10

Finding the Fourth Proportional to 185,665,872.38, 278,508,059.16 and 70,659,328.10

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Solution

The fourth proportional to 185,665,872.38, 278,508,059.16 and 70,659,328.10 is: 105,992,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,665,872.38 : 278,508,059.16 = 70,659,328.10 : x
  2. Step 2: Convert to fraction form
    185,665,872.38/278,508,059.16 = 70,659,328.10/x
  3. Step 3: Cross multiply
    185,665,872.38x = 278,508,059.16 × 70,659,328.10
  4. Step 4: Simplify right side
    185,665,872.38x = 19,679,192,329,288,112
  5. Step 5: Solve for x
    x = 19,679,192,329,288,112/185,665,872.38
  6. Step 6: Final answer
    x = 105,992,512.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.