Finding the Fourth Proportional to 19,794,728.42, 27,307,018.06 and 17,177,559.18
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Solution
The fourth proportional to 19,794,728.42, 27,307,018.06 and 17,177,559.18 is: 23,696,607.95
Step by Step Solution
- Step 1: Write the proportion equation
19,794,728.42 : 27,307,018.06 = 17,177,559.18 : x - Step 2: Convert to fraction form
19,794,728.42/27,307,018.06 = 17,177,559.18/x - Step 3: Cross multiply
19,794,728.42x = 27,307,018.06 × 17,177,559.18 - Step 4: Simplify right side
19,794,728.42x = 469,067,918,754,978.75 - Step 5: Solve for x
x = 469,067,918,754,978.75/19,794,728.42 - Step 6: Final answer
x = 23,696,607.95
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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.