Finding the Fourth Proportional to 197,803,378.21, 296,737,331.59 and 81,187,436.53
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Solution
The fourth proportional to 197,803,378.21, 296,737,331.59 and 81,187,436.53 is: 121,794,397.50
Step by Step Solution
- Step 1: Write the proportion equation
197,803,378.21 : 296,737,331.59 = 81,187,436.53 : x - Step 2: Convert to fraction form
197,803,378.21/296,737,331.59 = 81,187,436.53/x - Step 3: Cross multiply
197,803,378.21x = 296,737,331.59 × 81,187,436.53 - Step 4: Simplify right side
197,803,378.21x = 24,091,343,273,061,000 - Step 5: Solve for x
x = 24,091,343,273,061,000/197,803,378.21 - Step 6: Final answer
x = 121,794,397.50
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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.