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Finding the Fourth Proportional to 978,996,361.80, 1,468,063,616.20 and 518,826,717.48

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Solution

The fourth proportional to 978,996,361.80, 1,468,063,616.20 and 518,826,717.48 is: 778,011,703.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,996,361.80 : 1,468,063,616.20 = 518,826,717.48 : x
  2. Step 2: Convert to fraction form
    978,996,361.80/1,468,063,616.20 = 518,826,717.48/x
  3. Step 3: Cross multiply
    978,996,361.80x = 1,468,063,616.20 × 518,826,717.48
  4. Step 4: Simplify right side
    978,996,361.80x = 761,670,627,044,864,640
  5. Step 5: Solve for x
    x = 761,670,627,044,864,640/978,996,361.80
  6. Step 6: Final answer
    x = 778,011,703.38

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