Finding the Fourth Proportional to 217,729,134.95, 326,640,994.25 and 79,554,520.05
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Solution
The fourth proportional to 217,729,134.95, 326,640,994.25 and 79,554,520.05 is: 119,349,059.70
Step by Step Solution
- Step 1: Write the proportion equation
217,729,134.95 : 326,640,994.25 = 79,554,520.05 : x - Step 2: Convert to fraction form
217,729,134.95/326,640,994.25 = 79,554,520.05/x - Step 3: Cross multiply
217,729,134.95x = 326,640,994.25 × 79,554,520.05 - Step 4: Simplify right side
217,729,134.95x = 25,985,767,525,815,788 - Step 5: Solve for x
x = 25,985,767,525,815,788/217,729,134.95 - Step 6: Final answer
x = 119,349,059.70
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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.