Finding the Fourth Proportional to 18,490,420.40, 27,739,413.42 and 6,358,308.18
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Solution
The fourth proportional to 18,490,420.40, 27,739,413.42 and 6,358,308.18 is: 9,538,763.07
Step by Step Solution
- Step 1: Write the proportion equation
18,490,420.40 : 27,739,413.42 = 6,358,308.18 : x - Step 2: Convert to fraction form
18,490,420.40/27,739,413.42 = 6,358,308.18/x - Step 3: Cross multiply
18,490,420.40x = 27,739,413.42 × 6,358,308.18 - Step 4: Simplify right side
18,490,420.40x = 176,375,739,302,841.44 - Step 5: Solve for x
x = 176,375,739,302,841.44/18,490,420.40 - Step 6: Final answer
x = 9,538,763.07
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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.