Home / 870,038,387.94-1,305,022,189.41-214,972,918.20

Finding the Fourth Proportional to 870,038,387.94, 1,305,022,189.41 and 214,972,918.20

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Solution

The fourth proportional to 870,038,387.94, 1,305,022,189.41 and 214,972,918.20 is: 322,450,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,038,387.94 : 1,305,022,189.41 = 214,972,918.20 : x
  2. Step 2: Convert to fraction form
    870,038,387.94/1,305,022,189.41 = 214,972,918.20/x
  3. Step 3: Cross multiply
    870,038,387.94x = 1,305,022,189.41 × 214,972,918.20
  4. Step 4: Simplify right side
    870,038,387.94x = 280,544,428,373,220,832
  5. Step 5: Solve for x
    x = 280,544,428,373,220,832/870,038,387.94
  6. Step 6: Final answer
    x = 322,450,632.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.