Home / 290,005,641.90-400,216,446.84-178,560,775.66

Finding the Fourth Proportional to 290,005,641.90, 400,216,446.84 and 178,560,775.66

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Solution

The fourth proportional to 290,005,641.90, 400,216,446.84 and 178,560,775.66 is: 246,419,203.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,005,641.90 : 400,216,446.84 = 178,560,775.66 : x
  2. Step 2: Convert to fraction form
    290,005,641.90/400,216,446.84 = 178,560,775.66/x
  3. Step 3: Cross multiply
    290,005,641.90x = 400,216,446.84 × 178,560,775.66
  4. Step 4: Simplify right side
    290,005,641.90x = 71,462,959,179,639,552
  5. Step 5: Solve for x
    x = 71,462,959,179,639,552/290,005,641.90
  6. Step 6: Final answer
    x = 246,419,203.13

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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.