Finding the Fourth Proportional to 27,492,447.36, 37,938,915.62 and 15,269,314.08
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Solution
The fourth proportional to 27,492,447.36, 37,938,915.62 and 15,269,314.08 is: 21,071,285.91
Step by Step Solution
- Step 1: Write the proportion equation
27,492,447.36 : 37,938,915.62 = 15,269,314.08 : x - Step 2: Convert to fraction form
27,492,447.36/37,938,915.62 = 15,269,314.08/x - Step 3: Cross multiply
27,492,447.36x = 37,938,915.62 × 15,269,314.08 - Step 4: Simplify right side
27,492,447.36x = 579,301,218,665,472.12 - Step 5: Solve for x
x = 579,301,218,665,472.12/27,492,447.36 - Step 6: Final answer
x = 21,071,285.91
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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.