Finding the Fourth Proportional to 7,698,163.70, 11,550,010.35 and 7,421,683.70
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Solution
The fourth proportional to 7,698,163.70, 11,550,010.35 and 7,421,683.70 is: 11,135,191.05
Step by Step Solution
- Step 1: Write the proportion equation
7,698,163.70 : 11,550,010.35 = 7,421,683.70 : x - Step 2: Convert to fraction form
7,698,163.70/11,550,010.35 = 7,421,683.70/x - Step 3: Cross multiply
7,698,163.70x = 11,550,010.35 × 7,421,683.70 - Step 4: Simplify right side
7,698,163.70x = 85,720,523,549,426.30 - Step 5: Solve for x
x = 85,720,523,549,426.30/7,698,163.70 - Step 6: Final answer
x = 11,135,191.05
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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.