Finding the Fourth Proportional to 91,899,261.80, 137,848,892.70 and 48,746,252.60
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Solution
The fourth proportional to 91,899,261.80, 137,848,892.70 and 48,746,252.60 is: 73,119,378.90
Step by Step Solution
- Step 1: Write the proportion equation
91,899,261.80 : 137,848,892.70 = 48,746,252.60 : x - Step 2: Convert to fraction form
91,899,261.80/137,848,892.70 = 48,746,252.60/x - Step 3: Cross multiply
91,899,261.80x = 137,848,892.70 × 48,746,252.60 - Step 4: Simplify right side
91,899,261.80x = 6,719,616,944,184,496 - Step 5: Solve for x
x = 6,719,616,944,184,496/91,899,261.80 - Step 6: Final answer
x = 73,119,378.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.