Finding the Fourth Proportional to 194,943,295.80, 292,414,943.70 and 156,679,543.80
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Solution
The fourth proportional to 194,943,295.80, 292,414,943.70 and 156,679,543.80 is: 235,019,315.70
Step by Step Solution
- Step 1: Write the proportion equation
194,943,295.80 : 292,414,943.70 = 156,679,543.80 : x - Step 2: Convert to fraction form
194,943,295.80/292,414,943.70 = 156,679,543.80/x - Step 3: Cross multiply
194,943,295.80x = 292,414,943.70 × 156,679,543.80 - Step 4: Simplify right side
194,943,295.80x = 45,815,439,979,218,688 - Step 5: Solve for x
x = 45,815,439,979,218,688/194,943,295.80 - Step 6: Final answer
x = 235,019,315.70
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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.