Home / 8,311,946.40-12,467,919.60-6,989,248.80

Finding the Fourth Proportional to 8,311,946.40, 12,467,919.60 and 6,989,248.80

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Solution

The fourth proportional to 8,311,946.40, 12,467,919.60 and 6,989,248.80 is: 10,483,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,946.40 : 12,467,919.60 = 6,989,248.80 : x
  2. Step 2: Convert to fraction form
    8,311,946.40/12,467,919.60 = 6,989,248.80/x
  3. Step 3: Cross multiply
    8,311,946.40x = 12,467,919.60 × 6,989,248.80
  4. Step 4: Simplify right side
    8,311,946.40x = 87,141,392,102,796.47
  5. Step 5: Solve for x
    x = 87,141,392,102,796.47/8,311,946.40
  6. Step 6: Final answer
    x = 10,483,873.20

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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.