Finding the Fourth Proportional to 19,941,791.70, 29,912,687.55 and 6,478,619.70
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Solution
The fourth proportional to 19,941,791.70, 29,912,687.55 and 6,478,619.70 is: 9,717,929.55
Step by Step Solution
- Step 1: Write the proportion equation
19,941,791.70 : 29,912,687.55 = 6,478,619.70 : x - Step 2: Convert to fraction form
19,941,791.70/29,912,687.55 = 6,478,619.70/x - Step 3: Cross multiply
19,941,791.70x = 29,912,687.55 × 6,478,619.70 - Step 4: Simplify right side
19,941,791.70x = 193,792,926,841,374.75 - Step 5: Solve for x
x = 193,792,926,841,374.75/19,941,791.70 - Step 6: Final answer
x = 9,717,929.55
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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.