Finding the Fourth Proportional to 21,447,047.96, 29,597,124.32 and 11,657,515.18
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Solution
The fourth proportional to 21,447,047.96, 29,597,124.32 and 11,657,515.18 is: 16,087,478.64
Step by Step Solution
- Step 1: Write the proportion equation
21,447,047.96 : 29,597,124.32 = 11,657,515.18 : x - Step 2: Convert to fraction form
21,447,047.96/29,597,124.32 = 11,657,515.18/x - Step 3: Cross multiply
21,447,047.96x = 29,597,124.32 × 11,657,515.18 - Step 4: Simplify right side
21,447,047.96x = 345,028,926,044,747.19 - Step 5: Solve for x
x = 345,028,926,044,747.19/21,447,047.96 - Step 6: Final answer
x = 16,087,478.64
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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.