Finding the Fourth Proportional to 13,117,561.95, 19,635,986.55 and 8,558,794.62
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Solution
The fourth proportional to 13,117,561.95, 19,635,986.55 and 8,558,794.62 is: 12,811,860.67
Step by Step Solution
- Step 1: Write the proportion equation
13,117,561.95 : 19,635,986.55 = 8,558,794.62 : x - Step 2: Convert to fraction form
13,117,561.95/19,635,986.55 = 8,558,794.62/x - Step 3: Cross multiply
13,117,561.95x = 19,635,986.55 × 8,558,794.62 - Step 4: Simplify right side
13,117,561.95x = 168,060,376,042,532.34 - Step 5: Solve for x
x = 168,060,376,042,532.34/13,117,561.95 - Step 6: Final answer
x = 12,811,860.67
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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.