Home / 678,298,487.00-1,017,206,949.06-199,014,570.49

Finding the Fourth Proportional to 678,298,487.00, 1,017,206,949.06 and 199,014,570.49

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Solution

The fourth proportional to 678,298,487.00, 1,017,206,949.06 and 199,014,570.49 is: 298,451,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,298,487.00 : 1,017,206,949.06 = 199,014,570.49 : x
  2. Step 2: Convert to fraction form
    678,298,487.00/1,017,206,949.06 = 199,014,570.49/x
  3. Step 3: Cross multiply
    678,298,487.00x = 1,017,206,949.06 × 199,014,570.49
  4. Step 4: Simplify right side
    678,298,487.00x = 202,439,004,070,987,424
  5. Step 5: Solve for x
    x = 202,439,004,070,987,424/678,298,487.00
  6. Step 6: Final answer
    x = 298,451,209.83

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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.