Finding the Fourth Proportional to 75,229,900.08, 103,721,154.78 and 48,721,413.87
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Solution
The fourth proportional to 75,229,900.08, 103,721,154.78 and 48,721,413.87 is: 67,173,308.80
Step by Step Solution
- Step 1: Write the proportion equation
75,229,900.08 : 103,721,154.78 = 48,721,413.87 : x - Step 2: Convert to fraction form
75,229,900.08/103,721,154.78 = 48,721,413.87/x - Step 3: Cross multiply
75,229,900.08x = 103,721,154.78 × 48,721,413.87 - Step 4: Simplify right side
75,229,900.08x = 5,053,441,309,110,709 - Step 5: Solve for x
x = 5,053,441,309,110,709/75,229,900.08 - Step 6: Final answer
x = 67,173,308.80
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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.