Finding the Fourth Proportional to 7,771,543.70, 11,657,315.55 and 4,412,311.70
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Solution
The fourth proportional to 7,771,543.70, 11,657,315.55 and 4,412,311.70 is: 6,618,467.55
Step by Step Solution
- Step 1: Write the proportion equation
7,771,543.70 : 11,657,315.55 = 4,412,311.70 : x - Step 2: Convert to fraction form
7,771,543.70/11,657,315.55 = 4,412,311.70/x - Step 3: Cross multiply
7,771,543.70x = 11,657,315.55 × 4,412,311.70 - Step 4: Simplify right side
7,771,543.70x = 51,435,709,791,856.94 - Step 5: Solve for x
x = 51,435,709,791,856.94/7,771,543.70 - Step 6: Final answer
x = 6,618,467.55
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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.