Finding the Fourth Proportional to 15,284,984.22, 21,093,444.90 and 8,315,701.02
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Solution
The fourth proportional to 15,284,984.22, 21,093,444.90 and 8,315,701.02 is: 11,475,758.09
Step by Step Solution
- Step 1: Write the proportion equation
15,284,984.22 : 21,093,444.90 = 8,315,701.02 : x - Step 2: Convert to fraction form
15,284,984.22/21,093,444.90 = 8,315,701.02/x - Step 3: Cross multiply
15,284,984.22x = 21,093,444.90 × 8,315,701.02 - Step 4: Simplify right side
15,284,984.22x = 175,406,781,270,243.78 - Step 5: Solve for x
x = 175,406,781,270,243.78/15,284,984.22 - Step 6: Final answer
x = 11,475,758.09
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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.