Home / 319,858,785.72-479,788,182.24-77,521,689.72

Finding the Fourth Proportional to 319,858,785.72, 479,788,182.24 and 77,521,689.72

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Solution

The fourth proportional to 319,858,785.72, 479,788,182.24 and 77,521,689.72 is: 116,282,535.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,858,785.72 : 479,788,182.24 = 77,521,689.72 : x
  2. Step 2: Convert to fraction form
    319,858,785.72/479,788,182.24 = 77,521,689.72/x
  3. Step 3: Cross multiply
    319,858,785.72x = 479,788,182.24 × 77,521,689.72
  4. Step 4: Simplify right side
    319,858,785.72x = 37,193,990,594,932,096
  5. Step 5: Solve for x
    x = 37,193,990,594,932,096/319,858,785.72
  6. Step 6: Final answer
    x = 116,282,535.47

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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.