Finding the Fourth Proportional to 19,651,434.21, 27,117,872.56 and 10,830,858.76
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Solution
The fourth proportional to 19,651,434.21, 27,117,872.56 and 10,830,858.76 is: 14,945,975.16
Step by Step Solution
- Step 1: Write the proportion equation
19,651,434.21 : 27,117,872.56 = 10,830,858.76 : x - Step 2: Convert to fraction form
19,651,434.21/27,117,872.56 = 10,830,858.76/x - Step 3: Cross multiply
19,651,434.21x = 27,117,872.56 × 10,830,858.76 - Step 4: Simplify right side
19,651,434.21x = 293,709,847,474,167.81 - Step 5: Solve for x
x = 293,709,847,474,167.81/19,651,434.21 - Step 6: Final answer
x = 14,945,975.16
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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.