Home / 725,981,324.40-1,089,397,139.40-265,965,994.80

Finding the Fourth Proportional to 725,981,324.40, 1,089,397,139.40 and 265,965,994.80

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Solution

The fourth proportional to 725,981,324.40, 1,089,397,139.40 and 265,965,994.80 is: 399,104,748.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,981,324.40 : 1,089,397,139.40 = 265,965,994.80 : x
  2. Step 2: Convert to fraction form
    725,981,324.40/1,089,397,139.40 = 265,965,994.80/x
  3. Step 3: Cross multiply
    725,981,324.40x = 1,089,397,139.40 × 265,965,994.80
  4. Step 4: Simplify right side
    725,981,324.40x = 289,742,593,912,795,328
  5. Step 5: Solve for x
    x = 289,742,593,912,795,328/725,981,324.40
  6. Step 6: Final answer
    x = 399,104,748.53

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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.