Home / 13,440,644.20-20,160,966.30-7,771,940.20

Finding the Fourth Proportional to 13,440,644.20, 20,160,966.30 and 7,771,940.20

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Solution

The fourth proportional to 13,440,644.20, 20,160,966.30 and 7,771,940.20 is: 11,657,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440,644.20 : 20,160,966.30 = 7,771,940.20 : x
  2. Step 2: Convert to fraction form
    13,440,644.20/20,160,966.30 = 7,771,940.20/x
  3. Step 3: Cross multiply
    13,440,644.20x = 20,160,966.30 × 7,771,940.20
  4. Step 4: Simplify right side
    13,440,644.20x = 156,689,824,457,815.28
  5. Step 5: Solve for x
    x = 156,689,824,457,815.28/13,440,644.20
  6. Step 6: Final answer
    x = 11,657,910.30

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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.