Home / 665,610,271.40-998,339,824.38-256,632,173.48

Finding the Fourth Proportional to 665,610,271.40, 998,339,824.38 and 256,632,173.48

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Solution

The fourth proportional to 665,610,271.40, 998,339,824.38 and 256,632,173.48 is: 384,919,118.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,610,271.40 : 998,339,824.38 = 256,632,173.48 : x
  2. Step 2: Convert to fraction form
    665,610,271.40/998,339,824.38 = 256,632,173.48/x
  3. Step 3: Cross multiply
    665,610,271.40x = 998,339,824.38 × 256,632,173.48
  4. Step 4: Simplify right side
    665,610,271.40x = 256,206,119,002,280,896
  5. Step 5: Solve for x
    x = 256,206,119,002,280,896/665,610,271.40
  6. Step 6: Final answer
    x = 384,919,118.61

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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.