Home / 7,145,813.71-9,861,259.39-3,882,636.77

Finding the Fourth Proportional to 7,145,813.71, 9,861,259.39 and 3,882,636.77

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Solution

The fourth proportional to 7,145,813.71, 9,861,259.39 and 3,882,636.77 is: 5,358,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145,813.71 : 9,861,259.39 = 3,882,636.77 : x
  2. Step 2: Convert to fraction form
    7,145,813.71/9,861,259.39 = 3,882,636.77/x
  3. Step 3: Cross multiply
    7,145,813.71x = 9,861,259.39 × 3,882,636.77
  4. Step 4: Simplify right side
    7,145,813.71x = 38,287,688,306,121.77
  5. Step 5: Solve for x
    x = 38,287,688,306,121.77/7,145,813.71
  6. Step 6: Final answer
    x = 5,358,058.56

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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.