Finding the Fourth Proportional to 91,985,874.13, 137,908,089.88 and 47,622,601.99
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Solution
The fourth proportional to 91,985,874.13, 137,908,089.88 and 47,622,601.99 is: 71,397,289.40
Step by Step Solution
- Step 1: Write the proportion equation
91,985,874.13 : 137,908,089.88 = 47,622,601.99 : x - Step 2: Convert to fraction form
91,985,874.13/137,908,089.88 = 47,622,601.99/x - Step 3: Cross multiply
91,985,874.13x = 137,908,089.88 × 47,622,601.99 - Step 4: Simplify right side
91,985,874.13x = 6,567,542,075,609,715 - Step 5: Solve for x
x = 6,567,542,075,609,715/91,985,874.13 - Step 6: Final answer
x = 71,397,289.40
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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.