Finding the Fourth Proportional to 19,681,202.10, 29,521,803.15 and 12,083,531.70
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Solution
The fourth proportional to 19,681,202.10, 29,521,803.15 and 12,083,531.70 is: 18,125,297.55
Step by Step Solution
- Step 1: Write the proportion equation
19,681,202.10 : 29,521,803.15 = 12,083,531.70 : x - Step 2: Convert to fraction form
19,681,202.10/29,521,803.15 = 12,083,531.70/x - Step 3: Cross multiply
19,681,202.10x = 29,521,803.15 × 12,083,531.70 - Step 4: Simplify right side
19,681,202.10x = 356,727,644,204,184.81 - Step 5: Solve for x
x = 356,727,644,204,184.81/19,681,202.10 - Step 6: Final answer
x = 18,125,297.55
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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.