Finding the Fourth Proportional to 18,696,677.96, 28,042,205.16 and 5,915,519.48
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Solution
The fourth proportional to 18,696,677.96, 28,042,205.16 and 5,915,519.48 is: 8,872,389.59
Step by Step Solution
- Step 1: Write the proportion equation
18,696,677.96 : 28,042,205.16 = 5,915,519.48 : x - Step 2: Convert to fraction form
18,696,677.96/28,042,205.16 = 5,915,519.48/x - Step 3: Cross multiply
18,696,677.96x = 28,042,205.16 × 5,915,519.48 - Step 4: Simplify right side
18,696,677.96x = 165,884,210,886,136.53 - Step 5: Solve for x
x = 165,884,210,886,136.53/18,696,677.96 - Step 6: Final answer
x = 8,872,389.59
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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.