Home / 20,669,588.60-31,004,382.90-9,907,908.35

Finding the Fourth Proportional to 20,669,588.60, 31,004,382.90 and 9,907,908.35

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Solution

The fourth proportional to 20,669,588.60, 31,004,382.90 and 9,907,908.35 is: 14,861,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,588.60 : 31,004,382.90 = 9,907,908.35 : x
  2. Step 2: Convert to fraction form
    20,669,588.60/31,004,382.90 = 9,907,908.35/x
  3. Step 3: Cross multiply
    20,669,588.60x = 31,004,382.90 × 9,907,908.35
  4. Step 4: Simplify right side
    20,669,588.60x = 307,188,584,221,507.19
  5. Step 5: Solve for x
    x = 307,188,584,221,507.19/20,669,588.60
  6. Step 6: Final answer
    x = 14,861,862.53

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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.