Home / 878,414,531.74-1,317,575,391.75-288,127,016.62

Finding the Fourth Proportional to 878,414,531.74, 1,317,575,391.75 and 288,127,016.62

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Solution

The fourth proportional to 878,414,531.74, 1,317,575,391.75 and 288,127,016.62 is: 432,175,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,414,531.74 : 1,317,575,391.75 = 288,127,016.62 : x
  2. Step 2: Convert to fraction form
    878,414,531.74/1,317,575,391.75 = 288,127,016.62/x
  3. Step 3: Cross multiply
    878,414,531.74x = 1,317,575,391.75 × 288,127,016.62
  4. Step 4: Simplify right side
    878,414,531.74x = 379,629,066,792,078,144
  5. Step 5: Solve for x
    x = 379,629,066,792,078,144/878,414,531.74
  6. Step 6: Final answer
    x = 432,175,303.43

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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.