Finding the Fourth Proportional to 15,306,070.16, 21,122,375.63 and 8,430,552.22
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Solution
The fourth proportional to 15,306,070.16, 21,122,375.63 and 8,430,552.22 is: 11,634,161.41
Step by Step Solution
- Step 1: Write the proportion equation
15,306,070.16 : 21,122,375.63 = 8,430,552.22 : x - Step 2: Convert to fraction form
15,306,070.16/21,122,375.63 = 8,430,552.22/x - Step 3: Cross multiply
15,306,070.16x = 21,122,375.63 × 8,430,552.22 - Step 4: Simplify right side
15,306,070.16x = 178,073,290,727,440.84 - Step 5: Solve for x
x = 178,073,290,727,440.84/15,306,070.16 - Step 6: Final answer
x = 11,634,161.41
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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.