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Finding the Fourth Proportional to 651,672,939.20, 978,643,149.60 and 345,562,923.20

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Solution

The fourth proportional to 651,672,939.20, 978,643,149.60 and 345,562,923.20 is: 518,945,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,672,939.20 : 978,643,149.60 = 345,562,923.20 : x
  2. Step 2: Convert to fraction form
    651,672,939.20/978,643,149.60 = 345,562,923.20/x
  3. Step 3: Cross multiply
    651,672,939.20x = 978,643,149.60 × 345,562,923.20
  4. Step 4: Simplify right side
    651,672,939.20x = 338,182,787,545,430,912
  5. Step 5: Solve for x
    x = 338,182,787,545,430,912/651,672,939.20
  6. Step 6: Final answer
    x = 518,945,574.08

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Why These Related Problems?

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