Home / 5,478,666.10-8,217,999.15-5,321,202.10

Finding the Fourth Proportional to 5,478,666.10, 8,217,999.15 and 5,321,202.10

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Solution

The fourth proportional to 5,478,666.10, 8,217,999.15 and 5,321,202.10 is: 7,981,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478,666.10 : 8,217,999.15 = 5,321,202.10 : x
  2. Step 2: Convert to fraction form
    5,478,666.10/8,217,999.15 = 5,321,202.10/x
  3. Step 3: Cross multiply
    5,478,666.10x = 8,217,999.15 × 5,321,202.10
  4. Step 4: Simplify right side
    5,478,666.10x = 43,729,634,334,778.21
  5. Step 5: Solve for x
    x = 43,729,634,334,778.21/5,478,666.10
  6. Step 6: Final answer
    x = 7,981,803.15

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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.