Home / 208,029,942.92-312,065,559.66-76,906,588.88

Finding the Fourth Proportional to 208,029,942.92, 312,065,559.66 and 76,906,588.88

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Solution

The fourth proportional to 208,029,942.92, 312,065,559.66 and 76,906,588.88 is: 115,367,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,029,942.92 : 312,065,559.66 = 76,906,588.88 : x
  2. Step 2: Convert to fraction form
    208,029,942.92/312,065,559.66 = 76,906,588.88/x
  3. Step 3: Cross multiply
    208,029,942.92x = 312,065,559.66 × 76,906,588.88
  4. Step 4: Simplify right side
    208,029,942.92x = 23,999,897,698,818,408
  5. Step 5: Solve for x
    x = 23,999,897,698,818,408/208,029,942.92
  6. Step 6: Final answer
    x = 115,367,515.67

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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.