Finding the Fourth Proportional to 927,861,929.80, 1,391,573,144.94 and 345,869,387.08
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Solution
The fourth proportional to 927,861,929.80, 1,391,573,144.94 and 345,869,387.08 is: 518,722,166.80
Step by Step Solution
- Step 1: Write the proportion equation
927,861,929.80 : 1,391,573,144.94 = 345,869,387.08 : x - Step 2: Convert to fraction form
927,861,929.80/1,391,573,144.94 = 345,869,387.08/x - Step 3: Cross multiply
927,861,929.80x = 1,391,573,144.94 × 345,869,387.08 - Step 4: Simplify right side
927,861,929.80x = 481,302,550,717,385,792 - Step 5: Solve for x
x = 481,302,550,717,385,792/927,861,929.80 - Step 6: Final answer
x = 518,722,166.80
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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.