Home / 290,241,105.30-400,517,604.93-180,230,458.26

Finding the Fourth Proportional to 290,241,105.30, 400,517,604.93 and 180,230,458.26

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Solution

The fourth proportional to 290,241,105.30, 400,517,604.93 and 180,230,458.26 is: 248,708,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,241,105.30 : 400,517,604.93 = 180,230,458.26 : x
  2. Step 2: Convert to fraction form
    290,241,105.30/400,517,604.93 = 180,230,458.26/x
  3. Step 3: Cross multiply
    290,241,105.30x = 400,517,604.93 × 180,230,458.26
  4. Step 4: Simplify right side
    290,241,105.30x = 72,185,471,477,731,536
  5. Step 5: Solve for x
    x = 72,185,471,477,731,536/290,241,105.30
  6. Step 6: Final answer
    x = 248,708,643.12

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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.