Home / 290,619,191.20-401,056,355.28-158,462,364.64

Finding the Fourth Proportional to 290,619,191.20, 401,056,355.28 and 158,462,364.64

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Solution

The fourth proportional to 290,619,191.20, 401,056,355.28 and 158,462,364.64 is: 218,679,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,619,191.20 : 401,056,355.28 = 158,462,364.64 : x
  2. Step 2: Convert to fraction form
    290,619,191.20/401,056,355.28 = 158,462,364.64/x
  3. Step 3: Cross multiply
    290,619,191.20x = 401,056,355.28 × 158,462,364.64
  4. Step 4: Simplify right side
    290,619,191.20x = 63,552,338,411,568,736
  5. Step 5: Solve for x
    x = 63,552,338,411,568,736/290,619,191.20
  6. Step 6: Final answer
    x = 218,679,083.61

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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.