Home / 20,143,809.70-30,215,714.55-14,085,382.30

Finding the Fourth Proportional to 20,143,809.70, 30,215,714.55 and 14,085,382.30

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Solution

The fourth proportional to 20,143,809.70, 30,215,714.55 and 14,085,382.30 is: 21,128,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,809.70 : 30,215,714.55 = 14,085,382.30 : x
  2. Step 2: Convert to fraction form
    20,143,809.70/30,215,714.55 = 14,085,382.30/x
  3. Step 3: Cross multiply
    20,143,809.70x = 30,215,714.55 × 14,085,382.30
  4. Step 4: Simplify right side
    20,143,809.70x = 425,599,890,904,422.50
  5. Step 5: Solve for x
    x = 425,599,890,904,422.50/20,143,809.70
  6. Step 6: Final answer
    x = 21,128,073.45

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Double scale
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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.