Home / 13,361,542.60-20,042,313.90-6,643,078.60

Finding the Fourth Proportional to 13,361,542.60, 20,042,313.90 and 6,643,078.60

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Solution

The fourth proportional to 13,361,542.60, 20,042,313.90 and 6,643,078.60 is: 9,964,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,542.60 : 20,042,313.90 = 6,643,078.60 : x
  2. Step 2: Convert to fraction form
    13,361,542.60/20,042,313.90 = 6,643,078.60/x
  3. Step 3: Cross multiply
    13,361,542.60x = 20,042,313.90 × 6,643,078.60
  4. Step 4: Simplify right side
    13,361,542.60x = 133,142,666,563,572.52
  5. Step 5: Solve for x
    x = 133,142,666,563,572.52/13,361,542.60
  6. Step 6: Final answer
    x = 9,964,617.90

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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.