Finding the Fourth Proportional to 3,768,319.49, 5,199,107.78 and 2,136,598.79
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Solution
The fourth proportional to 3,768,319.49, 5,199,107.78 and 2,136,598.79 is: 2,947,841.18
Step by Step Solution
- Step 1: Write the proportion equation
3,768,319.49 : 5,199,107.78 = 2,136,598.79 : x - Step 2: Convert to fraction form
3,768,319.49/5,199,107.78 = 2,136,598.79/x - Step 3: Cross multiply
3,768,319.49x = 5,199,107.78 × 2,136,598.79 - Step 4: Simplify right side
3,768,319.49x = 11,108,407,371,173.54 - Step 5: Solve for x
x = 11,108,407,371,173.54/3,768,319.49 - Step 6: Final answer
x = 2,947,841.18
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1.5x scale
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.