Home / 499,678,979.43-689,578,540.62-276,660,665.85

Finding the Fourth Proportional to 499,678,979.43, 689,578,540.62 and 276,660,665.85

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Solution

The fourth proportional to 499,678,979.43, 689,578,540.62 and 276,660,665.85 is: 381,803,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,678,979.43 : 689,578,540.62 = 276,660,665.85 : x
  2. Step 2: Convert to fraction form
    499,678,979.43/689,578,540.62 = 276,660,665.85/x
  3. Step 3: Cross multiply
    499,678,979.43x = 689,578,540.62 × 276,660,665.85
  4. Step 4: Simplify right side
    499,678,979.43x = 190,779,258,203,800,480
  5. Step 5: Solve for x
    x = 190,779,258,203,800,480/499,678,979.43
  6. Step 6: Final answer
    x = 381,803,650.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.