Home / 870,038,386.92-1,305,022,187.90-214,972,917.20

Finding the Fourth Proportional to 870,038,386.92, 1,305,022,187.90 and 214,972,917.20

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Solution

The fourth proportional to 870,038,386.92, 1,305,022,187.90 and 214,972,917.20 is: 322,450,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,038,386.92 : 1,305,022,187.90 = 214,972,917.20 : x
  2. Step 2: Convert to fraction form
    870,038,386.92/1,305,022,187.90 = 214,972,917.20/x
  3. Step 3: Cross multiply
    870,038,386.92x = 1,305,022,187.90 × 214,972,917.20
  4. Step 4: Simplify right side
    870,038,386.92x = 280,544,426,743,589,536
  5. Step 5: Solve for x
    x = 280,544,426,743,589,536/870,038,386.92
  6. Step 6: Final answer
    x = 322,450,630.87

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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.