Finding the Fourth Proportional to 28,008,837.59, 38,652,364.34 and 15,619,713.99
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Solution
The fourth proportional to 28,008,837.59, 38,652,364.34 and 15,619,713.99 is: 21,555,299.26
Step by Step Solution
- Step 1: Write the proportion equation
28,008,837.59 : 38,652,364.34 = 15,619,713.99 : x - Step 2: Convert to fraction form
28,008,837.59/38,652,364.34 = 15,619,713.99/x - Step 3: Cross multiply
28,008,837.59x = 38,652,364.34 × 15,619,713.99 - Step 4: Simplify right side
28,008,837.59x = 603,738,876,156,683.75 - Step 5: Solve for x
x = 603,738,876,156,683.75/28,008,837.59 - Step 6: Final answer
x = 21,555,299.26
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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.