Home / 7,320,729.60-10,981,094.40-4,769,812.80

Finding the Fourth Proportional to 7,320,729.60, 10,981,094.40 and 4,769,812.80

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Solution

The fourth proportional to 7,320,729.60, 10,981,094.40 and 4,769,812.80 is: 7,154,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320,729.60 : 10,981,094.40 = 4,769,812.80 : x
  2. Step 2: Convert to fraction form
    7,320,729.60/10,981,094.40 = 4,769,812.80/x
  3. Step 3: Cross multiply
    7,320,729.60x = 10,981,094.40 × 4,769,812.80
  4. Step 4: Simplify right side
    7,320,729.60x = 52,377,764,627,128.32
  5. Step 5: Solve for x
    x = 52,377,764,627,128.32/7,320,729.60
  6. Step 6: Final answer
    x = 7,154,719.20

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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.