Home / 20,672,155.28-31,014,749.88-9,741,903.38

Finding the Fourth Proportional to 20,672,155.28, 31,014,749.88 and 9,741,903.38

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Solution

The fourth proportional to 20,672,155.28, 31,014,749.88 and 9,741,903.38 is: 14,615,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,155.28 : 31,014,749.88 = 9,741,903.38 : x
  2. Step 2: Convert to fraction form
    20,672,155.28/31,014,749.88 = 9,741,903.38/x
  3. Step 3: Cross multiply
    20,672,155.28x = 31,014,749.88 × 9,741,903.38
  4. Step 4: Simplify right side
    20,672,155.28x = 302,142,696,685,826.62
  5. Step 5: Solve for x
    x = 302,142,696,685,826.62/20,672,155.28
  6. Step 6: Final answer
    x = 14,615,926.23

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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.