Home / 139,535,738.44-209,305,827.26-77,680,209.74

Finding the Fourth Proportional to 139,535,738.44, 209,305,827.26 and 77,680,209.74

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Solution

The fourth proportional to 139,535,738.44, 209,305,827.26 and 77,680,209.74 is: 116,521,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,535,738.44 : 209,305,827.26 = 77,680,209.74 : x
  2. Step 2: Convert to fraction form
    139,535,738.44/209,305,827.26 = 77,680,209.74/x
  3. Step 3: Cross multiply
    139,535,738.44x = 209,305,827.26 × 77,680,209.74
  4. Step 4: Simplify right side
    139,535,738.44x = 16,258,920,560,217,380
  5. Step 5: Solve for x
    x = 16,258,920,560,217,380/139,535,738.44
  6. Step 6: Final answer
    x = 116,521,550.27

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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.