Home / 20,752,455.90-31,137,541.20-9,964,203.60

Finding the Fourth Proportional to 20,752,455.90, 31,137,541.20 and 9,964,203.60

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Solution

The fourth proportional to 20,752,455.90, 31,137,541.20 and 9,964,203.60 is: 14,950,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752,455.90 : 31,137,541.20 = 9,964,203.60 : x
  2. Step 2: Convert to fraction form
    20,752,455.90/31,137,541.20 = 9,964,203.60/x
  3. Step 3: Cross multiply
    20,752,455.90x = 31,137,541.20 × 9,964,203.60
  4. Step 4: Simplify right side
    20,752,455.90x = 310,260,800,120,188.31
  5. Step 5: Solve for x
    x = 310,260,800,120,188.31/20,752,455.90
  6. Step 6: Final answer
    x = 14,950,558.22

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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.