Home / 20,790,451.52-31,183,294.64-5,439,222.60

Finding the Fourth Proportional to 20,790,451.52, 31,183,294.64 and 5,439,222.60

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Solution

The fourth proportional to 20,790,451.52, 31,183,294.64 and 5,439,222.60 is: 8,158,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,451.52 : 31,183,294.64 = 5,439,222.60 : x
  2. Step 2: Convert to fraction form
    20,790,451.52/31,183,294.64 = 5,439,222.60/x
  3. Step 3: Cross multiply
    20,790,451.52x = 31,183,294.64 × 5,439,222.60
  4. Step 4: Simplify right side
    20,790,451.52x = 169,612,880,948,346.84
  5. Step 5: Solve for x
    x = 169,612,880,948,346.84/20,790,451.52
  6. Step 6: Final answer
    x = 8,158,210.55

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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.