Finding the Fourth Proportional to 323,870,363.40, 485,805,545.10 and 292,629,505.80
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Solution
The fourth proportional to 323,870,363.40, 485,805,545.10 and 292,629,505.80 is: 438,944,258.70
Step by Step Solution
- Step 1: Write the proportion equation
323,870,363.40 : 485,805,545.10 = 292,629,505.80 : x - Step 2: Convert to fraction form
323,870,363.40/485,805,545.10 = 292,629,505.80/x - Step 3: Cross multiply
323,870,363.40x = 485,805,545.10 × 292,629,505.80 - Step 4: Simplify right side
323,870,363.40x = 142,161,036,577,512,624 - Step 5: Solve for x
x = 142,161,036,577,512,624/323,870,363.40 - Step 6: Final answer
x = 438,944,258.70
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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.