Finding the Fourth Proportional to 27,720,381.45, 41,580,572.18 and 7,528,125.45
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Solution
The fourth proportional to 27,720,381.45, 41,580,572.18 and 7,528,125.45 is: 11,292,188.18
Step by Step Solution
- Step 1: Write the proportion equation
27,720,381.45 : 41,580,572.18 = 7,528,125.45 : x - Step 2: Convert to fraction form
27,720,381.45/41,580,572.18 = 7,528,125.45/x - Step 3: Cross multiply
27,720,381.45x = 41,580,572.18 × 7,528,125.45 - Step 4: Simplify right side
27,720,381.45x = 313,023,763,616,179.31 - Step 5: Solve for x
x = 313,023,763,616,179.31/27,720,381.45 - Step 6: Final answer
x = 11,292,188.18
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1.5x scale
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.