Home / 14,114,513.80-21,171,770.70-12,920,120.20

Finding the Fourth Proportional to 14,114,513.80, 21,171,770.70 and 12,920,120.20

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Solution

The fourth proportional to 14,114,513.80, 21,171,770.70 and 12,920,120.20 is: 19,380,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114,513.80 : 21,171,770.70 = 12,920,120.20 : x
  2. Step 2: Convert to fraction form
    14,114,513.80/21,171,770.70 = 12,920,120.20/x
  3. Step 3: Cross multiply
    14,114,513.80x = 21,171,770.70 × 12,920,120.20
  4. Step 4: Simplify right side
    14,114,513.80x = 273,541,822,290,838.12
  5. Step 5: Solve for x
    x = 273,541,822,290,838.12/14,114,513.80
  6. Step 6: Final answer
    x = 19,380,180.30

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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.