Finding the Fourth Proportional to 207,361,251.20, 311,041,876.80 and 71,001,315.20
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Solution
The fourth proportional to 207,361,251.20, 311,041,876.80 and 71,001,315.20 is: 106,501,972.80
Step by Step Solution
- Step 1: Write the proportion equation
207,361,251.20 : 311,041,876.80 = 71,001,315.20 : x - Step 2: Convert to fraction form
207,361,251.20/311,041,876.80 = 71,001,315.20/x - Step 3: Cross multiply
207,361,251.20x = 311,041,876.80 × 71,001,315.20 - Step 4: Simplify right side
207,361,251.20x = 22,084,382,335,076,368 - Step 5: Solve for x
x = 22,084,382,335,076,368/207,361,251.20 - Step 6: Final answer
x = 106,501,972.80
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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.