Finding the Fourth Proportional to 91,619,377.34, 137,129,975.12 and 67,351,881.02
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Solution
The fourth proportional to 91,619,377.34, 137,129,975.12 and 67,351,881.02 is: 100,807,951.73
Step by Step Solution
- Step 1: Write the proportion equation
91,619,377.34 : 137,129,975.12 = 67,351,881.02 : x - Step 2: Convert to fraction form
91,619,377.34/137,129,975.12 = 67,351,881.02/x - Step 3: Cross multiply
91,619,377.34x = 137,129,975.12 × 67,351,881.02 - Step 4: Simplify right side
91,619,377.34x = 9,235,961,768,040,530 - Step 5: Solve for x
x = 9,235,961,768,040,530/91,619,377.34 - Step 6: Final answer
x = 100,807,951.73
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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.