Home / 20,864,748.16-31,293,765.12-5,715,137.92

Finding the Fourth Proportional to 20,864,748.16, 31,293,765.12 and 5,715,137.92

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Solution

The fourth proportional to 20,864,748.16, 31,293,765.12 and 5,715,137.92 is: 8,571,787.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,748.16 : 31,293,765.12 = 5,715,137.92 : x
  2. Step 2: Convert to fraction form
    20,864,748.16/31,293,765.12 = 5,715,137.92/x
  3. Step 3: Cross multiply
    20,864,748.16x = 31,293,765.12 × 5,715,137.92
  4. Step 4: Simplify right side
    20,864,748.16x = 178,848,183,696,885.34
  5. Step 5: Solve for x
    x = 178,848,183,696,885.34/20,864,748.16
  6. Step 6: Final answer
    x = 8,571,787.32

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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.