Finding the Fourth Proportional to 19,715,530.60, 29,515,235.10 and 14,689,124.20
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Solution
The fourth proportional to 19,715,530.60, 29,515,235.10 and 14,689,124.20 is: 21,990,427.90
Step by Step Solution
- Step 1: Write the proportion equation
19,715,530.60 : 29,515,235.10 = 14,689,124.20 : x - Step 2: Convert to fraction form
19,715,530.60/29,515,235.10 = 14,689,124.20/x - Step 3: Cross multiply
19,715,530.60x = 29,515,235.10 × 14,689,124.20 - Step 4: Simplify right side
19,715,530.60x = 433,552,954,176,099.44 - Step 5: Solve for x
x = 433,552,954,176,099.44/19,715,530.60 - Step 6: Final answer
x = 21,990,427.90
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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.