Finding the Fourth Proportional to 216,206,478.42, 298,363,454.55 and 117,084,957.54
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Solution
The fourth proportional to 216,206,478.42, 298,363,454.55 and 117,084,957.54 is: 161,576,436.85
Step by Step Solution
- Step 1: Write the proportion equation
216,206,478.42 : 298,363,454.55 = 117,084,957.54 : x - Step 2: Convert to fraction form
216,206,478.42/298,363,454.55 = 117,084,957.54/x - Step 3: Cross multiply
216,206,478.42x = 298,363,454.55 × 117,084,957.54 - Step 4: Simplify right side
216,206,478.42x = 34,933,872,407,474,472 - Step 5: Solve for x
x = 34,933,872,407,474,472/216,206,478.42 - Step 6: Final answer
x = 161,576,436.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.