Home / 782,305,501.20-1,173,458,251.80-200,085,313.65

Finding the Fourth Proportional to 782,305,501.20, 1,173,458,251.80 and 200,085,313.65

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Solution

The fourth proportional to 782,305,501.20, 1,173,458,251.80 and 200,085,313.65 is: 300,127,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,305,501.20 : 1,173,458,251.80 = 200,085,313.65 : x
  2. Step 2: Convert to fraction form
    782,305,501.20/1,173,458,251.80 = 200,085,313.65/x
  3. Step 3: Cross multiply
    782,305,501.20x = 1,173,458,251.80 × 200,085,313.65
  4. Step 4: Simplify right side
    782,305,501.20x = 234,791,762,366,583,680
  5. Step 5: Solve for x
    x = 234,791,762,366,583,680/782,305,501.20
  6. Step 6: Final answer
    x = 300,127,970.48

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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.