Home / 678,610,387.57-1,016,019,112.40-366,600,195.25

Finding the Fourth Proportional to 678,610,387.57, 1,016,019,112.40 and 366,600,195.25

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Solution

The fourth proportional to 678,610,387.57, 1,016,019,112.40 and 366,600,195.25 is: 548,875,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,610,387.57 : 1,016,019,112.40 = 366,600,195.25 : x
  2. Step 2: Convert to fraction form
    678,610,387.57/1,016,019,112.40 = 366,600,195.25/x
  3. Step 3: Cross multiply
    678,610,387.57x = 1,016,019,112.40 × 366,600,195.25
  4. Step 4: Simplify right side
    678,610,387.57x = 372,472,804,981,738,688
  5. Step 5: Solve for x
    x = 372,472,804,981,738,688/678,610,387.57
  6. Step 6: Final answer
    x = 548,875,778.80

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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.