Finding the Fourth Proportional to 14,365,612.13, 19,824,963.40 and 7,839,661.93
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Solution
The fourth proportional to 14,365,612.13, 19,824,963.40 and 7,839,661.93 is: 10,818,961.94
Step by Step Solution
- Step 1: Write the proportion equation
14,365,612.13 : 19,824,963.40 = 7,839,661.93 : x - Step 2: Convert to fraction form
14,365,612.13/19,824,963.40 = 7,839,661.93/x - Step 3: Cross multiply
14,365,612.13x = 19,824,963.40 × 7,839,661.93 - Step 4: Simplify right side
14,365,612.13x = 155,421,010,902,375.97 - Step 5: Solve for x
x = 155,421,010,902,375.97/14,365,612.13 - Step 6: Final answer
x = 10,818,961.94
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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.