Finding the Fourth Proportional to 117,689,396.12, 162,397,257.42 and 65,465,235.80
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Solution
The fourth proportional to 117,689,396.12, 162,397,257.42 and 65,465,235.80 is: 90,334,177.09
Step by Step Solution
- Step 1: Write the proportion equation
117,689,396.12 : 162,397,257.42 = 65,465,235.80 : x - Step 2: Convert to fraction form
117,689,396.12/162,397,257.42 = 65,465,235.80/x - Step 3: Cross multiply
117,689,396.12x = 162,397,257.42 × 65,465,235.80 - Step 4: Simplify right side
117,689,396.12x = 10,631,374,750,273,598 - Step 5: Solve for x
x = 10,631,374,750,273,598/117,689,396.12 - Step 6: Final answer
x = 90,334,177.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.