Home / 870,189,049.50-1,305,319,572.09-256,773,282.54

Finding the Fourth Proportional to 870,189,049.50, 1,305,319,572.09 and 256,773,282.54

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Solution

The fourth proportional to 870,189,049.50, 1,305,319,572.09 and 256,773,282.54 is: 385,170,545.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,189,049.50 : 1,305,319,572.09 = 256,773,282.54 : x
  2. Step 2: Convert to fraction form
    870,189,049.50/1,305,319,572.09 = 256,773,282.54/x
  3. Step 3: Cross multiply
    870,189,049.50x = 1,305,319,572.09 × 256,773,282.54
  4. Step 4: Simplify right side
    870,189,049.50x = 335,171,191,289,257,408
  5. Step 5: Solve for x
    x = 335,171,191,289,257,408/870,189,049.50
  6. Step 6: Final answer
    x = 385,170,545.97

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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.