Home / 20,957,989.81-31,436,977.32-5,604,880.46

Finding the Fourth Proportional to 20,957,989.81, 31,436,977.32 and 5,604,880.46

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Solution

The fourth proportional to 20,957,989.81, 31,436,977.32 and 5,604,880.46 is: 8,407,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,957,989.81 : 31,436,977.32 = 5,604,880.46 : x
  2. Step 2: Convert to fraction form
    20,957,989.81/31,436,977.32 = 5,604,880.46/x
  3. Step 3: Cross multiply
    20,957,989.81x = 31,436,977.32 × 5,604,880.46
  4. Step 4: Simplify right side
    20,957,989.81x = 176,200,499,902,331.16
  5. Step 5: Solve for x
    x = 176,200,499,902,331.16/20,957,989.81
  6. Step 6: Final answer
    x = 8,407,318.71

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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.