Home / 10,109,722.30-15,164,583.45-5,621,998.30

Finding the Fourth Proportional to 10,109,722.30, 15,164,583.45 and 5,621,998.30

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Solution

The fourth proportional to 10,109,722.30, 15,164,583.45 and 5,621,998.30 is: 8,432,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,722.30 : 15,164,583.45 = 5,621,998.30 : x
  2. Step 2: Convert to fraction form
    10,109,722.30/15,164,583.45 = 5,621,998.30/x
  3. Step 3: Cross multiply
    10,109,722.30x = 15,164,583.45 × 5,621,998.30
  4. Step 4: Simplify right side
    10,109,722.30x = 85,255,262,376,108.12
  5. Step 5: Solve for x
    x = 85,255,262,376,108.12/10,109,722.30
  6. Step 6: Final answer
    x = 8,432,997.45

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Half scale
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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.