Home / 725,981,505.40-1,089,397,410.90-265,966,175.80

Finding the Fourth Proportional to 725,981,505.40, 1,089,397,410.90 and 265,966,175.80

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Solution

The fourth proportional to 725,981,505.40, 1,089,397,410.90 and 265,966,175.80 is: 399,105,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,981,505.40 : 1,089,397,410.90 = 265,966,175.80 : x
  2. Step 2: Convert to fraction form
    725,981,505.40/1,089,397,410.90 = 265,966,175.80/x
  3. Step 3: Cross multiply
    725,981,505.40x = 1,089,397,410.90 × 265,966,175.80
  4. Step 4: Simplify right side
    725,981,505.40x = 289,742,863,303,494,272
  5. Step 5: Solve for x
    x = 289,742,863,303,494,272/725,981,505.40
  6. Step 6: Final answer
    x = 399,105,020.10

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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.