Finding the Fourth Proportional to 78,355,743.15, 117,544,965.12 and 29,167,507.92
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Solution
The fourth proportional to 78,355,743.15, 117,544,965.12 and 29,167,507.92 is: 43,755,487.00
Step by Step Solution
- Step 1: Write the proportion equation
78,355,743.15 : 117,544,965.12 = 29,167,507.92 : x - Step 2: Convert to fraction form
78,355,743.15/117,544,965.12 = 29,167,507.92/x - Step 3: Cross multiply
78,355,743.15x = 117,544,965.12 × 29,167,507.92 - Step 4: Simplify right side
78,355,743.15x = 3,428,493,701,093,724 - Step 5: Solve for x
x = 3,428,493,701,093,724/78,355,743.15 - Step 6: Final answer
x = 43,755,487.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.