Finding the Fourth Proportional to 75,240,087.96, 103,832,397.38 and 56,368,231.68
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Solution
The fourth proportional to 75,240,087.96, 103,832,397.38 and 56,368,231.68 is: 77,788,965.83
Step by Step Solution
- Step 1: Write the proportion equation
75,240,087.96 : 103,832,397.38 = 56,368,231.68 : x - Step 2: Convert to fraction form
75,240,087.96/103,832,397.38 = 56,368,231.68/x - Step 3: Cross multiply
75,240,087.96x = 103,832,397.38 × 56,368,231.68 - Step 4: Simplify right side
75,240,087.96x = 5,852,848,631,405,665 - Step 5: Solve for x
x = 5,852,848,631,405,665/75,240,087.96 - Step 6: Final answer
x = 77,788,965.83
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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.