Finding the Fourth Proportional to 194,894,130.12, 292,378,065.95 and 78,318,560.96
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Solution
The fourth proportional to 194,894,130.12, 292,378,065.95 and 78,318,560.96 is: 117,492,658.03
Step by Step Solution
- Step 1: Write the proportion equation
194,894,130.12 : 292,378,065.95 = 78,318,560.96 : x - Step 2: Convert to fraction form
194,894,130.12/292,378,065.95 = 78,318,560.96/x - Step 3: Cross multiply
194,894,130.12x = 292,378,065.95 × 78,318,560.96 - Step 4: Simplify right side
194,894,130.12x = 22,898,629,382,946,924 - Step 5: Solve for x
x = 22,898,629,382,946,924/194,894,130.12 - Step 6: Final answer
x = 117,492,658.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.