Finding the Fourth Proportional to 15,312,492.04, 21,131,717.54 and 8,787,315.08
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Solution
The fourth proportional to 15,312,492.04, 21,131,717.54 and 8,787,315.08 is: 12,126,769.42
Step by Step Solution
- Step 1: Write the proportion equation
15,312,492.04 : 21,131,717.54 = 8,787,315.08 : x - Step 2: Convert to fraction form
15,312,492.04/21,131,717.54 = 8,787,315.08/x - Step 3: Cross multiply
15,312,492.04x = 21,131,717.54 × 8,787,315.08 - Step 4: Simplify right side
15,312,492.04x = 185,691,060,205,542.50 - Step 5: Solve for x
x = 185,691,060,205,542.50/15,312,492.04 - Step 6: Final answer
x = 12,126,769.42
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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.