Home / 870,187,129.45-1,305,280,694.18-295,758,457.45

Finding the Fourth Proportional to 870,187,129.45, 1,305,280,694.18 and 295,758,457.45

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Solution

The fourth proportional to 870,187,129.45, 1,305,280,694.18 and 295,758,457.45 is: 443,637,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,187,129.45 : 1,305,280,694.18 = 295,758,457.45 : x
  2. Step 2: Convert to fraction form
    870,187,129.45/1,305,280,694.18 = 295,758,457.45/x
  3. Step 3: Cross multiply
    870,187,129.45x = 1,305,280,694.18 × 295,758,457.45
  4. Step 4: Simplify right side
    870,187,129.45x = 386,047,804,649,942,016
  5. Step 5: Solve for x
    x = 386,047,804,649,942,016/870,187,129.45
  6. Step 6: Final answer
    x = 443,637,686.18

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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.