Home / 520,765,400.80-780,014,360.40-315,936,229.60

Finding the Fourth Proportional to 520,765,400.80, 780,014,360.40 and 315,936,229.60

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Solution

The fourth proportional to 520,765,400.80, 780,014,360.40 and 315,936,229.60 is: 473,216,530.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,765,400.80 : 780,014,360.40 = 315,936,229.60 : x
  2. Step 2: Convert to fraction form
    520,765,400.80/780,014,360.40 = 315,936,229.60/x
  3. Step 3: Cross multiply
    520,765,400.80x = 780,014,360.40 × 315,936,229.60
  4. Step 4: Simplify right side
    520,765,400.80x = 246,434,796,058,631,552
  5. Step 5: Solve for x
    x = 246,434,796,058,631,552/520,765,400.80
  6. Step 6: Final answer
    x = 473,216,530.28

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