Finding the Fourth Proportional to 257,736,490.20, 355,751,305.44 and 168,441,867.12
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Solution
The fourth proportional to 257,736,490.20, 355,751,305.44 and 168,441,867.12 is: 232,498,758.99
Step by Step Solution
- Step 1: Write the proportion equation
257,736,490.20 : 355,751,305.44 = 168,441,867.12 : x - Step 2: Convert to fraction form
257,736,490.20/355,751,305.44 = 168,441,867.12/x - Step 3: Cross multiply
257,736,490.20x = 355,751,305.44 × 168,441,867.12 - Step 4: Simplify right side
257,736,490.20x = 59,923,414,118,691,016 - Step 5: Solve for x
x = 59,923,414,118,691,016/257,736,490.20 - Step 6: Final answer
x = 232,498,758.99
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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.