Finding the Fourth Proportional to 5,919,413.12, 8,168,814.71 and 3,203,159.12
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Solution
The fourth proportional to 5,919,413.12, 8,168,814.71 and 3,203,159.12 is: 4,420,372.89
Step by Step Solution
- Step 1: Write the proportion equation
5,919,413.12 : 8,168,814.71 = 3,203,159.12 : x - Step 2: Convert to fraction form
5,919,413.12/8,168,814.71 = 3,203,159.12/x - Step 3: Cross multiply
5,919,413.12x = 8,168,814.71 × 3,203,159.12 - Step 4: Simplify right side
5,919,413.12x = 26,166,013,281,066.79 - Step 5: Solve for x
x = 26,166,013,281,066.79/5,919,413.12 - Step 6: Final answer
x = 4,420,372.89
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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.