Home / 10,990,778.40-16,478,487.60-6,500,743.20

Finding the Fourth Proportional to 10,990,778.40, 16,478,487.60 and 6,500,743.20

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Solution

The fourth proportional to 10,990,778.40, 16,478,487.60 and 6,500,743.20 is: 9,746,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990,778.40 : 16,478,487.60 = 6,500,743.20 : x
  2. Step 2: Convert to fraction form
    10,990,778.40/16,478,487.60 = 6,500,743.20/x
  3. Step 3: Cross multiply
    10,990,778.40x = 16,478,487.60 × 6,500,743.20
  4. Step 4: Simplify right side
    10,990,778.40x = 107,122,416,211,984.33
  5. Step 5: Solve for x
    x = 107,122,416,211,984.33/10,990,778.40
  6. Step 6: Final answer
    x = 9,746,572.29

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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.