Finding the Fourth Proportional to 27,991,549.07, 38,610,305.20 and 18,572,136.18
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Solution
The fourth proportional to 27,991,549.07, 38,610,305.20 and 18,572,136.18 is: 25,617,583.52
Step by Step Solution
- Step 1: Write the proportion equation
27,991,549.07 : 38,610,305.20 = 18,572,136.18 : x - Step 2: Convert to fraction form
27,991,549.07/38,610,305.20 = 18,572,136.18/x - Step 3: Cross multiply
27,991,549.07x = 38,610,305.20 × 18,572,136.18 - Step 4: Simplify right side
27,991,549.07x = 717,075,846,125,762.12 - Step 5: Solve for x
x = 717,075,846,125,762.12/27,991,549.07 - Step 6: Final answer
x = 25,617,583.52
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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.