Finding the Fourth Proportional to 18,125,862.98, 27,188,057.06 and 4,478,665.66
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Solution
The fourth proportional to 18,125,862.98, 27,188,057.06 and 4,478,665.66 is: 6,717,816.28
Step by Step Solution
- Step 1: Write the proportion equation
18,125,862.98 : 27,188,057.06 = 4,478,665.66 : x - Step 2: Convert to fraction form
18,125,862.98/27,188,057.06 = 4,478,665.66/x - Step 3: Cross multiply
18,125,862.98x = 27,188,057.06 × 4,478,665.66 - Step 4: Simplify right side
18,125,862.98x = 121,766,217,358,408.95 - Step 5: Solve for x
x = 121,766,217,358,408.95/18,125,862.98 - Step 6: Final answer
x = 6,717,816.28
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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.