Finding the Fourth Proportional to 208,288,590.70, 312,432,886.05 and 174,528,309.10
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Solution
The fourth proportional to 208,288,590.70, 312,432,886.05 and 174,528,309.10 is: 261,792,463.65
Step by Step Solution
- Step 1: Write the proportion equation
208,288,590.70 : 312,432,886.05 = 174,528,309.10 : x - Step 2: Convert to fraction form
208,288,590.70/312,432,886.05 = 174,528,309.10/x - Step 3: Cross multiply
208,288,590.70x = 312,432,886.05 × 174,528,309.10 - Step 4: Simplify right side
208,288,590.70x = 54,528,383,309,539,480 - Step 5: Solve for x
x = 54,528,383,309,539,480/208,288,590.70 - Step 6: Final answer
x = 261,792,463.65
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1.5x scale
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.