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Finding the Fourth Proportional to 653,205,155.30, 978,464,040.15 and 330,270,985.70

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Solution

The fourth proportional to 653,205,155.30, 978,464,040.15 and 330,270,985.70 is: 494,727,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,205,155.30 : 978,464,040.15 = 330,270,985.70 : x
  2. Step 2: Convert to fraction form
    653,205,155.30/978,464,040.15 = 330,270,985.70/x
  3. Step 3: Cross multiply
    653,205,155.30x = 978,464,040.15 × 330,270,985.70
  4. Step 4: Simplify right side
    653,205,155.30x = 323,158,283,012,344,832
  5. Step 5: Solve for x
    x = 323,158,283,012,344,832/653,205,155.30
  6. Step 6: Final answer
    x = 494,727,085.95

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Why These Related Problems?

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