Finding the Fourth Proportional to 9,122,231.53, 12,588,136.86 and 4,991,438.62
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Solution
The fourth proportional to 9,122,231.53, 12,588,136.86 and 4,991,438.62 is: 6,887,888.37
Step by Step Solution
- Step 1: Write the proportion equation
9,122,231.53 : 12,588,136.86 = 4,991,438.62 : x - Step 2: Convert to fraction form
9,122,231.53/12,588,136.86 = 4,991,438.62/x - Step 3: Cross multiply
9,122,231.53x = 12,588,136.86 × 4,991,438.62 - Step 4: Simplify right side
9,122,231.53x = 62,832,912,476,849.53 - Step 5: Solve for x
x = 62,832,912,476,849.53/9,122,231.53 - Step 6: Final answer
x = 6,887,888.37
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1.5x scale
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.