Finding the Fourth Proportional to 99,739,557.23, 137,687,239.94 and 57,915,475.88
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Solution
The fourth proportional to 99,739,557.23, 137,687,239.94 and 57,915,475.88 is: 79,950,445.39
Step by Step Solution
- Step 1: Write the proportion equation
99,739,557.23 : 137,687,239.94 = 57,915,475.88 : x - Step 2: Convert to fraction form
99,739,557.23/137,687,239.94 = 57,915,475.88/x - Step 3: Cross multiply
99,739,557.23x = 137,687,239.94 × 57,915,475.88 - Step 4: Simplify right side
99,739,557.23x = 7,974,222,022,750,829 - Step 5: Solve for x
x = 7,974,222,022,750,829/99,739,557.23 - Step 6: Final answer
x = 79,950,445.39
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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.