Home / 13,771,504.70-20,639,542.35-8,374,426.10

Finding the Fourth Proportional to 13,771,504.70, 20,639,542.35 and 8,374,426.10

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Solution

The fourth proportional to 13,771,504.70, 20,639,542.35 and 8,374,426.10 is: 12,550,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,504.70 : 20,639,542.35 = 8,374,426.10 : x
  2. Step 2: Convert to fraction form
    13,771,504.70/20,639,542.35 = 8,374,426.10/x
  3. Step 3: Cross multiply
    13,771,504.70x = 20,639,542.35 × 8,374,426.10
  4. Step 4: Simplify right side
    13,771,504.70x = 172,844,322,147,895.34
  5. Step 5: Solve for x
    x = 172,844,322,147,895.34/13,771,504.70
  6. Step 6: Final answer
    x = 12,550,866.87

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1.5x scale

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.