Finding the Fourth Proportional to 5,627,876.64, 7,763,474.56 and 3,423,413.40
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Solution
The fourth proportional to 5,627,876.64, 7,763,474.56 and 3,423,413.40 is: 4,722,488.52
Step by Step Solution
- Step 1: Write the proportion equation
5,627,876.64 : 7,763,474.56 = 3,423,413.40 : x - Step 2: Convert to fraction form
5,627,876.64/7,763,474.56 = 3,423,413.40/x - Step 3: Cross multiply
5,627,876.64x = 7,763,474.56 × 3,423,413.40 - Step 4: Simplify right side
5,627,876.64x = 26,577,582,839,263.10 - Step 5: Solve for x
x = 26,577,582,839,263.10/5,627,876.64 - Step 6: Final answer
x = 4,722,488.52
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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.