Home / 5,478,005.70-8,217,008.55-5,121,087.30

Finding the Fourth Proportional to 5,478,005.70, 8,217,008.55 and 5,121,087.30

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Solution

The fourth proportional to 5,478,005.70, 8,217,008.55 and 5,121,087.30 is: 7,681,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478,005.70 : 8,217,008.55 = 5,121,087.30 : x
  2. Step 2: Convert to fraction form
    5,478,005.70/8,217,008.55 = 5,121,087.30/x
  3. Step 3: Cross multiply
    5,478,005.70x = 8,217,008.55 × 5,121,087.30
  4. Step 4: Simplify right side
    5,478,005.70x = 42,080,018,129,396.41
  5. Step 5: Solve for x
    x = 42,080,018,129,396.41/5,478,005.70
  6. Step 6: Final answer
    x = 7,681,630.95

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Similar ratio
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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.