Finding the Fourth Proportional to 12,345,607.73, 18,518,413.62 and 5,153,218.07
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Solution
The fourth proportional to 12,345,607.73, 18,518,413.62 and 5,153,218.07 is: 7,729,827.95
Step by Step Solution
- Step 1: Write the proportion equation
12,345,607.73 : 18,518,413.62 = 5,153,218.07 : x - Step 2: Convert to fraction form
12,345,607.73/18,518,413.62 = 5,153,218.07/x - Step 3: Cross multiply
12,345,607.73x = 18,518,413.62 × 5,153,218.07 - Step 4: Simplify right side
12,345,607.73x = 95,429,423,694,318.12 - Step 5: Solve for x
x = 95,429,423,694,318.12/12,345,607.73 - Step 6: Final answer
x = 7,729,827.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.