Home / 20,672,157.28-31,014,752.88-9,741,905.38

Finding the Fourth Proportional to 20,672,157.28, 31,014,752.88 and 9,741,905.38

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Solution

The fourth proportional to 20,672,157.28, 31,014,752.88 and 9,741,905.38 is: 14,615,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,157.28 : 31,014,752.88 = 9,741,905.38 : x
  2. Step 2: Convert to fraction form
    20,672,157.28/31,014,752.88 = 9,741,905.38/x
  3. Step 3: Cross multiply
    20,672,157.28x = 31,014,752.88 × 9,741,905.38
  4. Step 4: Simplify right side
    20,672,157.28x = 302,142,787,941,042.50
  5. Step 5: Solve for x
    x = 302,142,787,941,042.50/20,672,157.28
  6. Step 6: Final answer
    x = 14,615,929.24

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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.