Home / 7,148,499.92-9,865,029.78-3,885,313.70

Finding the Fourth Proportional to 7,148,499.92, 9,865,029.78 and 3,885,313.70

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Solution

The fourth proportional to 7,148,499.92, 9,865,029.78 and 3,885,313.70 is: 5,361,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148,499.92 : 9,865,029.78 = 3,885,313.70 : x
  2. Step 2: Convert to fraction form
    7,148,499.92/9,865,029.78 = 3,885,313.70/x
  3. Step 3: Cross multiply
    7,148,499.92x = 9,865,029.78 × 3,885,313.70
  4. Step 4: Simplify right side
    7,148,499.92x = 38,328,735,355,141.98
  5. Step 5: Solve for x
    x = 38,328,735,355,141.98/7,148,499.92
  6. Step 6: Final answer
    x = 5,361,787.20

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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.