Home / 290,005,641.28-400,216,445.98-178,560,775.03

Finding the Fourth Proportional to 290,005,641.28, 400,216,445.98 and 178,560,775.03

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Solution

The fourth proportional to 290,005,641.28, 400,216,445.98 and 178,560,775.03 is: 246,419,202.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,005,641.28 : 400,216,445.98 = 178,560,775.03 : x
  2. Step 2: Convert to fraction form
    290,005,641.28/400,216,445.98 = 178,560,775.03/x
  3. Step 3: Cross multiply
    290,005,641.28x = 400,216,445.98 × 178,560,775.03
  4. Step 4: Simplify right side
    290,005,641.28x = 71,462,958,773,940,928
  5. Step 5: Solve for x
    x = 71,462,958,773,940,928/290,005,641.28
  6. Step 6: Final answer
    x = 246,419,202.26

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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.