Home / 866,057,680.80-1,299,086,521.20-858,404,930.40

Finding the Fourth Proportional to 866,057,680.80, 1,299,086,521.20 and 858,404,930.40

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Solution

The fourth proportional to 866,057,680.80, 1,299,086,521.20 and 858,404,930.40 is: 1,287,607,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,057,680.80 : 1,299,086,521.20 = 858,404,930.40 : x
  2. Step 2: Convert to fraction form
    866,057,680.80/1,299,086,521.20 = 858,404,930.40/x
  3. Step 3: Cross multiply
    866,057,680.80x = 1,299,086,521.20 × 858,404,930.40
  4. Step 4: Simplify right side
    866,057,680.80x = 1,115,142,274,814,264,192
  5. Step 5: Solve for x
    x = 1,115,142,274,814,264,192/866,057,680.80
  6. Step 6: Final answer
    x = 1,287,607,395.60

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