Finding the Fourth Proportional to 5,278,909.10, 7,934,110.05 and 5,184,430.70
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Solution
The fourth proportional to 5,278,909.10, 7,934,110.05 and 5,184,430.70 is: 7,792,110.63
Step by Step Solution
- Step 1: Write the proportion equation
5,278,909.10 : 7,934,110.05 = 5,184,430.70 : x - Step 2: Convert to fraction form
5,278,909.10/7,934,110.05 = 5,184,430.70/x - Step 3: Cross multiply
5,278,909.10x = 7,934,110.05 × 5,184,430.70 - Step 4: Simplify right side
5,278,909.10x = 41,133,843,720,398.54 - Step 5: Solve for x
x = 41,133,843,720,398.54/5,278,909.10 - Step 6: Final answer
x = 7,792,110.63
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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.