Finding the Fourth Proportional to 15,618,106.29, 21,552,716.46 and 8,648,645.70
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Solution
The fourth proportional to 15,618,106.29, 21,552,716.46 and 8,648,645.70 is: 11,934,981.43
Step by Step Solution
- Step 1: Write the proportion equation
15,618,106.29 : 21,552,716.46 = 8,648,645.70 : x - Step 2: Convert to fraction form
15,618,106.29/21,552,716.46 = 8,648,645.70/x - Step 3: Cross multiply
15,618,106.29x = 21,552,716.46 × 8,648,645.70 - Step 4: Simplify right side
15,618,106.29x = 186,401,808,535,098.22 - Step 5: Solve for x
x = 186,401,808,535,098.22/15,618,106.29 - Step 6: Final answer
x = 11,934,981.43
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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.