Finding the Fourth Proportional to 68,497,957.69, 94,540,914.18 and 40,636,132.99
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Solution
The fourth proportional to 68,497,957.69, 94,540,914.18 and 40,636,132.99 is: 56,086,010.31
Step by Step Solution
- Step 1: Write the proportion equation
68,497,957.69 : 94,540,914.18 = 40,636,132.99 : x - Step 2: Convert to fraction form
68,497,957.69/94,540,914.18 = 40,636,132.99/x - Step 3: Cross multiply
68,497,957.69x = 94,540,914.18 × 40,636,132.99 - Step 4: Simplify right side
68,497,957.69x = 3,841,777,161,378,304.50 - Step 5: Solve for x
x = 3,841,777,161,378,304.50/68,497,957.69 - Step 6: Final answer
x = 56,086,010.31
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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.