Home / 725,981,504.90-1,089,397,410.15-265,966,175.30

Finding the Fourth Proportional to 725,981,504.90, 1,089,397,410.15 and 265,966,175.30

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Solution

The fourth proportional to 725,981,504.90, 1,089,397,410.15 and 265,966,175.30 is: 399,105,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,981,504.90 : 1,089,397,410.15 = 265,966,175.30 : x
  2. Step 2: Convert to fraction form
    725,981,504.90/1,089,397,410.15 = 265,966,175.30/x
  3. Step 3: Cross multiply
    725,981,504.90x = 1,089,397,410.15 × 265,966,175.30
  4. Step 4: Simplify right side
    725,981,504.90x = 289,742,862,559,320,960
  5. Step 5: Solve for x
    x = 289,742,862,559,320,960/725,981,504.90
  6. Step 6: Final answer
    x = 399,105,019.35

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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.