Home / 14,014,776.70-21,022,165.05-12,420,453.70

Finding the Fourth Proportional to 14,014,776.70, 21,022,165.05 and 12,420,453.70

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Solution

The fourth proportional to 14,014,776.70, 21,022,165.05 and 12,420,453.70 is: 18,630,680.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014,776.70 : 21,022,165.05 = 12,420,453.70 : x
  2. Step 2: Convert to fraction form
    14,014,776.70/21,022,165.05 = 12,420,453.70/x
  3. Step 3: Cross multiply
    14,014,776.70x = 21,022,165.05 × 12,420,453.70
  4. Step 4: Simplify right side
    14,014,776.70x = 261,104,827,677,283.19
  5. Step 5: Solve for x
    x = 261,104,827,677,283.19/14,014,776.70
  6. Step 6: Final answer
    x = 18,630,680.55

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Similar ratio
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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.