Finding the Fourth Proportional to 15,638,733.43, 21,580,363.44 and 8,669,343.99
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Solution
The fourth proportional to 15,638,733.43, 21,580,363.44 and 8,669,343.99 is: 11,963,091.18
Step by Step Solution
- Step 1: Write the proportion equation
15,638,733.43 : 21,580,363.44 = 8,669,343.99 : x - Step 2: Convert to fraction form
15,638,733.43/21,580,363.44 = 8,669,343.99/x - Step 3: Cross multiply
15,638,733.43x = 21,580,363.44 × 8,669,343.99 - Step 4: Simplify right side
15,638,733.43x = 187,087,594,050,116.56 - Step 5: Solve for x
x = 187,087,594,050,116.56/15,638,733.43 - Step 6: Final answer
x = 11,963,091.18
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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.