Home / 14,014,781.70-21,022,172.55-12,420,458.70

Finding the Fourth Proportional to 14,014,781.70, 21,022,172.55 and 12,420,458.70

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Solution

The fourth proportional to 14,014,781.70, 21,022,172.55 and 12,420,458.70 is: 18,630,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014,781.70 : 21,022,172.55 = 12,420,458.70 : x
  2. Step 2: Convert to fraction form
    14,014,781.70/21,022,172.55 = 12,420,458.70/x
  3. Step 3: Cross multiply
    14,014,781.70x = 21,022,172.55 × 12,420,458.70
  4. Step 4: Simplify right side
    14,014,781.70x = 261,105,025,941,548.69
  5. Step 5: Solve for x
    x = 261,105,025,941,548.69/14,014,781.70
  6. Step 6: Final answer
    x = 18,630,688.05

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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.