Home / 20,777,470.40-31,166,205.12-5,631,401.60

Finding the Fourth Proportional to 20,777,470.40, 31,166,205.12 and 5,631,401.60

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Solution

The fourth proportional to 20,777,470.40, 31,166,205.12 and 5,631,401.60 is: 8,447,102.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,470.40 : 31,166,205.12 = 5,631,401.60 : x
  2. Step 2: Convert to fraction form
    20,777,470.40/31,166,205.12 = 5,631,401.60/x
  3. Step 3: Cross multiply
    20,777,470.40x = 31,166,205.12 × 5,631,401.60
  4. Step 4: Simplify right side
    20,777,470.40x = 175,509,417,378,696.19
  5. Step 5: Solve for x
    x = 175,509,417,378,696.19/20,777,470.40
  6. Step 6: Final answer
    x = 8,447,102.27

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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.