Finding the Fourth Proportional to 66,367,071.80, 99,550,607.70 and 55,029,663.80
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Solution
The fourth proportional to 66,367,071.80, 99,550,607.70 and 55,029,663.80 is: 82,544,495.70
Step by Step Solution
- Step 1: Write the proportion equation
66,367,071.80 : 99,550,607.70 = 55,029,663.80 : x - Step 2: Convert to fraction form
66,367,071.80/99,550,607.70 = 55,029,663.80/x - Step 3: Cross multiply
66,367,071.80x = 99,550,607.70 × 55,029,663.80 - Step 4: Simplify right side
66,367,071.80x = 5,478,236,472,816,691 - Step 5: Solve for x
x = 5,478,236,472,816,691/66,367,071.80 - Step 6: Final answer
x = 82,544,495.70
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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.