Finding the Fourth Proportional to 90,813,449.40, 125,320,811.44 and 49,560,637
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Solution
The fourth proportional to 90,813,449.40, 125,320,811.44 and 49,560,637 is: 68,392,724.70
Step by Step Solution
- Step 1: Write the proportion equation
90,813,449.40 : 125,320,811.44 = 49,560,637 : x - Step 2: Convert to fraction form
90,813,449.40/125,320,811.44 = 49,560,637/x - Step 3: Cross multiply
90,813,449.40x = 125,320,811.44 × 49,560,637 - Step 4: Simplify right side
90,813,449.40x = 6,210,979,244,323,287 - Step 5: Solve for x
x = 6,210,979,244,323,287/90,813,449.40 - Step 6: Final answer
x = 68,392,724.70
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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.