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Finding the Fourth Proportional to 653,205,971.80, 978,465,264.90 and 330,271,802.20

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Solution

The fourth proportional to 653,205,971.80, 978,465,264.90 and 330,271,802.20 is: 494,728,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,205,971.80 : 978,465,264.90 = 330,271,802.20 : x
  2. Step 2: Convert to fraction form
    653,205,971.80/978,465,264.90 = 330,271,802.20/x
  3. Step 3: Cross multiply
    653,205,971.80x = 978,465,264.90 × 330,271,802.20
  4. Step 4: Simplify right side
    653,205,971.80x = 323,159,486,428,623,360
  5. Step 5: Solve for x
    x = 323,159,486,428,623,360/653,205,971.80
  6. Step 6: Final answer
    x = 494,728,309.87

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Why These Related Problems?

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