Finding the Fourth Proportional to 48,721,352.86, 67,218,914.77 and 27,798,354.62
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Solution
The fourth proportional to 48,721,352.86, 67,218,914.77 and 27,798,354.62 is: 38,352,285.39
Step by Step Solution
- Step 1: Write the proportion equation
48,721,352.86 : 67,218,914.77 = 27,798,354.62 : x - Step 2: Convert to fraction form
48,721,352.86/67,218,914.77 = 27,798,354.62/x - Step 3: Cross multiply
48,721,352.86x = 67,218,914.77 × 27,798,354.62 - Step 4: Simplify right side
48,721,352.86x = 1,868,575,229,681,416.75 - Step 5: Solve for x
x = 1,868,575,229,681,416.75/48,721,352.86 - Step 6: Final answer
x = 38,352,285.39
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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.