Home / 7,720,099.71-11,581,422.81-3,169,940.62

Finding the Fourth Proportional to 7,720,099.71, 11,581,422.81 and 3,169,940.62

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Solution

The fourth proportional to 7,720,099.71, 11,581,422.81 and 3,169,940.62 is: 4,755,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720,099.71 : 11,581,422.81 = 3,169,940.62 : x
  2. Step 2: Convert to fraction form
    7,720,099.71/11,581,422.81 = 3,169,940.62/x
  3. Step 3: Cross multiply
    7,720,099.71x = 11,581,422.81 × 3,169,940.62
  4. Step 4: Simplify right side
    7,720,099.71x = 36,712,422,602,813.55
  5. Step 5: Solve for x
    x = 36,712,422,602,813.55/7,720,099.71
  6. Step 6: Final answer
    x = 4,755,433.74

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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.