Finding the Fourth Proportional to 77,579,524.55, 107,161,938.24 and 57,503,221.63
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Solution
The fourth proportional to 77,579,524.55, 107,161,938.24 and 57,503,221.63 is: 79,430,193.99
Step by Step Solution
- Step 1: Write the proportion equation
77,579,524.55 : 107,161,938.24 = 57,503,221.63 : x - Step 2: Convert to fraction form
77,579,524.55/107,161,938.24 = 57,503,221.63/x - Step 3: Cross multiply
77,579,524.55x = 107,161,938.24 × 57,503,221.63 - Step 4: Simplify right side
77,579,524.55x = 6,162,156,684,915,092 - Step 5: Solve for x
x = 6,162,156,684,915,092/77,579,524.55 - Step 6: Final answer
x = 79,430,193.99
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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.