Finding the Fourth Proportional to 10,921,215.70, 16,381,823.55 and 2,943,039.70
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Solution
The fourth proportional to 10,921,215.70, 16,381,823.55 and 2,943,039.70 is: 4,414,559.55
Step by Step Solution
- Step 1: Write the proportion equation
10,921,215.70 : 16,381,823.55 = 2,943,039.70 : x - Step 2: Convert to fraction form
10,921,215.70/16,381,823.55 = 2,943,039.70/x - Step 3: Cross multiply
10,921,215.70x = 16,381,823.55 × 2,943,039.70 - Step 4: Simplify right side
10,921,215.70x = 48,212,357,066,044.94 - Step 5: Solve for x
x = 48,212,357,066,044.94/10,921,215.70 - Step 6: Final answer
x = 4,414,559.55
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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.