Home / 300,745,105.20-451,054,672.20-147,501,140.40

Finding the Fourth Proportional to 300,745,105.20, 451,054,672.20 and 147,501,140.40

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Solution

The fourth proportional to 300,745,105.20, 451,054,672.20 and 147,501,140.40 is: 221,220,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,745,105.20 : 451,054,672.20 = 147,501,140.40 : x
  2. Step 2: Convert to fraction form
    300,745,105.20/451,054,672.20 = 147,501,140.40/x
  3. Step 3: Cross multiply
    300,745,105.20x = 451,054,672.20 × 147,501,140.40
  4. Step 4: Simplify right side
    300,745,105.20x = 66,531,078,532,248,176
  5. Step 5: Solve for x
    x = 66,531,078,532,248,176/300,745,105.20
  6. Step 6: Final answer
    x = 221,220,819.17

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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.