Finding the Fourth Proportional to 76,898,849.38, 106,121,073.93 and 43,860,771.98
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Solution
The fourth proportional to 76,898,849.38, 106,121,073.93 and 43,860,771.98 is: 60,528,242.79
Step by Step Solution
- Step 1: Write the proportion equation
76,898,849.38 : 106,121,073.93 = 43,860,771.98 : x - Step 2: Convert to fraction form
76,898,849.38/106,121,073.93 = 43,860,771.98/x - Step 3: Cross multiply
76,898,849.38x = 106,121,073.93 × 43,860,771.98 - Step 4: Simplify right side
76,898,849.38x = 4,654,552,225,916,452 - Step 5: Solve for x
x = 4,654,552,225,916,452/76,898,849.38 - Step 6: Final answer
x = 60,528,242.79
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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.