Home / 690,899,007.54-1,036,530,234.62-248,286,402.39

Finding the Fourth Proportional to 690,899,007.54, 1,036,530,234.62 and 248,286,402.39

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Solution

The fourth proportional to 690,899,007.54, 1,036,530,234.62 and 248,286,402.39 is: 372,494,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,899,007.54 : 1,036,530,234.62 = 248,286,402.39 : x
  2. Step 2: Convert to fraction form
    690,899,007.54/1,036,530,234.62 = 248,286,402.39/x
  3. Step 3: Cross multiply
    690,899,007.54x = 1,036,530,234.62 × 248,286,402.39
  4. Step 4: Simplify right side
    690,899,007.54x = 257,356,362,921,020,992
  5. Step 5: Solve for x
    x = 257,356,362,921,020,992/690,899,007.54
  6. Step 6: Final answer
    x = 372,494,908.97

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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.