Finding the Fourth Proportional to 91,291,816.80, 125,995,626.36 and 56,495,716.92
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Solution
The fourth proportional to 91,291,816.80, 125,995,626.36 and 56,495,716.92 is: 77,972,084.35
Step by Step Solution
- Step 1: Write the proportion equation
91,291,816.80 : 125,995,626.36 = 56,495,716.92 : x - Step 2: Convert to fraction form
91,291,816.80/125,995,626.36 = 56,495,716.92/x - Step 3: Cross multiply
91,291,816.80x = 125,995,626.36 × 56,495,716.92 - Step 4: Simplify right side
91,291,816.80x = 7,118,213,239,992,650 - Step 5: Solve for x
x = 7,118,213,239,992,650/91,291,816.80 - Step 6: Final answer
x = 77,972,084.35
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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.