Home / 290,977,998.25-402,074,896.66-207,200,682.15

Finding the Fourth Proportional to 290,977,998.25, 402,074,896.66 and 207,200,682.15

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Solution

The fourth proportional to 290,977,998.25, 402,074,896.66 and 207,200,682.15 is: 286,310,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,977,998.25 : 402,074,896.66 = 207,200,682.15 : x
  2. Step 2: Convert to fraction form
    290,977,998.25/402,074,896.66 = 207,200,682.15/x
  3. Step 3: Cross multiply
    290,977,998.25x = 402,074,896.66 × 207,200,682.15
  4. Step 4: Simplify right side
    290,977,998.25x = 83,310,192,863,342,768
  5. Step 5: Solve for x
    x = 83,310,192,863,342,768/290,977,998.25
  6. Step 6: Final answer
    x = 286,310,969.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.