Finding the Fourth Proportional to 10,408,816.10, 14,371,743.94 and 8,355,128.94
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Solution
The fourth proportional to 10,408,816.10, 14,371,743.94 and 8,355,128.94 is: 11,536,160.55
Step by Step Solution
- Step 1: Write the proportion equation
10,408,816.10 : 14,371,743.94 = 8,355,128.94 : x - Step 2: Convert to fraction form
10,408,816.10/14,371,743.94 = 8,355,128.94/x - Step 3: Cross multiply
10,408,816.10x = 14,371,743.94 × 8,355,128.94 - Step 4: Simplify right side
10,408,816.10x = 120,077,773,690,475.81 - Step 5: Solve for x
x = 120,077,773,690,475.81/10,408,816.10 - Step 6: Final answer
x = 11,536,160.55
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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.