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Finding the Fourth Proportional to 653,119,878.80, 978,336,125.40 and 330,185,709.20

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Solution

The fourth proportional to 653,119,878.80, 978,336,125.40 and 330,185,709.20 is: 494,599,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,119,878.80 : 978,336,125.40 = 330,185,709.20 : x
  2. Step 2: Convert to fraction form
    653,119,878.80/978,336,125.40 = 330,185,709.20/x
  3. Step 3: Cross multiply
    653,119,878.80x = 978,336,125.40 × 330,185,709.20
  4. Step 4: Simplify right side
    653,119,878.80x = 323,032,607,401,179,136
  5. Step 5: Solve for x
    x = 323,032,607,401,179,136/653,119,878.80
  6. Step 6: Final answer
    x = 494,599,257.94

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Why These Related Problems?

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