Finding the Fourth Proportional to 15,118,232.58, 20,862,560.07 and 8,925,274.31
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Solution
The fourth proportional to 15,118,232.58, 20,862,560.07 and 8,925,274.31 is: 12,316,523.80
Step by Step Solution
- Step 1: Write the proportion equation
15,118,232.58 : 20,862,560.07 = 8,925,274.31 : x - Step 2: Convert to fraction form
15,118,232.58/20,862,560.07 = 8,925,274.31/x - Step 3: Cross multiply
15,118,232.58x = 20,862,560.07 × 8,925,274.31 - Step 4: Simplify right side
15,118,232.58x = 186,204,071,329,290 - Step 5: Solve for x
x = 186,204,071,329,290/15,118,232.58 - Step 6: Final answer
x = 12,316,523.80
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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.