Home / 31,135,007.76-46,702,677.90-20,420,160.72

Finding the Fourth Proportional to 31,135,007.76, 46,702,677.90 and 20,420,160.72

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Solution

The fourth proportional to 31,135,007.76, 46,702,677.90 and 20,420,160.72 is: 30,630,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,135,007.76 : 46,702,677.90 = 20,420,160.72 : x
  2. Step 2: Convert to fraction form
    31,135,007.76/46,702,677.90 = 20,420,160.72/x
  3. Step 3: Cross multiply
    31,135,007.76x = 46,702,677.90 × 20,420,160.72
  4. Step 4: Simplify right side
    31,135,007.76x = 953,676,188,772,392
  5. Step 5: Solve for x
    x = 953,676,188,772,392/31,135,007.76
  6. Step 6: Final answer
    x = 30,630,350.12

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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.