Finding the Fourth Proportional to 17,351,721.68, 23,931,413.71 and 15,254,079.18
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Solution
The fourth proportional to 17,351,721.68, 23,931,413.71 and 15,254,079.18 is: 21,038,354.95
Step by Step Solution
- Step 1: Write the proportion equation
17,351,721.68 : 23,931,413.71 = 15,254,079.18 : x - Step 2: Convert to fraction form
17,351,721.68/23,931,413.71 = 15,254,079.18/x - Step 3: Cross multiply
17,351,721.68x = 23,931,413.71 × 15,254,079.18 - Step 4: Simplify right side
17,351,721.68x = 365,051,679,621,677.56 - Step 5: Solve for x
x = 365,051,679,621,677.56/17,351,721.68 - Step 6: Final answer
x = 21,038,354.95
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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.