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Finding the Fourth Proportional to 664,850,978.20, 997,276,467.30 and 320,477,210.20

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Solution

The fourth proportional to 664,850,978.20, 997,276,467.30 and 320,477,210.20 is: 480,715,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,850,978.20 : 997,276,467.30 = 320,477,210.20 : x
  2. Step 2: Convert to fraction form
    664,850,978.20/997,276,467.30 = 320,477,210.20/x
  3. Step 3: Cross multiply
    664,850,978.20x = 997,276,467.30 × 320,477,210.20
  4. Step 4: Simplify right side
    664,850,978.20x = 319,604,380,038,415,488
  5. Step 5: Solve for x
    x = 319,604,380,038,415,488/664,850,978.20
  6. Step 6: Final answer
    x = 480,715,815.30

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Why These Related Problems?

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