Finding the Fourth Proportional to 194,943,324.80, 292,414,987.20 and 156,679,572.80
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Solution
The fourth proportional to 194,943,324.80, 292,414,987.20 and 156,679,572.80 is: 235,019,359.20
Step by Step Solution
- Step 1: Write the proportion equation
194,943,324.80 : 292,414,987.20 = 156,679,572.80 : x - Step 2: Convert to fraction form
194,943,324.80/292,414,987.20 = 156,679,572.80/x - Step 3: Cross multiply
194,943,324.80x = 292,414,987.20 × 156,679,572.80 - Step 4: Simplify right side
194,943,324.80x = 45,815,455,274,813,472 - Step 5: Solve for x
x = 45,815,455,274,813,472/194,943,324.80 - Step 6: Final answer
x = 235,019,359.20
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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.