Home / 870,187,107.20-1,305,280,660.80-295,758,435.20

Finding the Fourth Proportional to 870,187,107.20, 1,305,280,660.80 and 295,758,435.20

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Solution

The fourth proportional to 870,187,107.20, 1,305,280,660.80 and 295,758,435.20 is: 443,637,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,187,107.20 : 1,305,280,660.80 = 295,758,435.20 : x
  2. Step 2: Convert to fraction form
    870,187,107.20/1,305,280,660.80 = 295,758,435.20/x
  3. Step 3: Cross multiply
    870,187,107.20x = 1,305,280,660.80 × 295,758,435.20
  4. Step 4: Simplify right side
    870,187,107.20x = 386,047,765,735,029,952
  5. Step 5: Solve for x
    x = 386,047,765,735,029,952/870,187,107.20
  6. Step 6: Final answer
    x = 443,637,652.80

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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.