Home / 9,072,869.40-13,609,304.10-8,512,997.40

Finding the Fourth Proportional to 9,072,869.40, 13,609,304.10 and 8,512,997.40

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Solution

The fourth proportional to 9,072,869.40, 13,609,304.10 and 8,512,997.40 is: 12,769,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,869.40 : 13,609,304.10 = 8,512,997.40 : x
  2. Step 2: Convert to fraction form
    9,072,869.40/13,609,304.10 = 8,512,997.40/x
  3. Step 3: Cross multiply
    9,072,869.40x = 13,609,304.10 × 8,512,997.40
  4. Step 4: Simplify right side
    9,072,869.40x = 115,855,970,419,109.34
  5. Step 5: Solve for x
    x = 115,855,970,419,109.34/9,072,869.40
  6. Step 6: Final answer
    x = 12,769,496.10

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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.