Finding the Fourth Proportional to 843,670,118.70, 1,265,505,178.05 and 230,316,345.90
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Solution
The fourth proportional to 843,670,118.70, 1,265,505,178.05 and 230,316,345.90 is: 345,474,518.85
Step by Step Solution
- Step 1: Write the proportion equation
843,670,118.70 : 1,265,505,178.05 = 230,316,345.90 : x - Step 2: Convert to fraction form
843,670,118.70/1,265,505,178.05 = 230,316,345.90/x - Step 3: Cross multiply
843,670,118.70x = 1,265,505,178.05 × 230,316,345.90 - Step 4: Simplify right side
843,670,118.70x = 291,466,528,326,004,864 - Step 5: Solve for x
x = 291,466,528,326,004,864/843,670,118.70 - Step 6: Final answer
x = 345,474,518.85
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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.