Finding the Fourth Proportional to 18,349,915.57, 25,323,613.10 and 10,090,654.99
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Solution
The fourth proportional to 18,349,915.57, 25,323,613.10 and 10,090,654.99 is: 13,925,505.10
Step by Step Solution
- Step 1: Write the proportion equation
18,349,915.57 : 25,323,613.10 = 10,090,654.99 : x - Step 2: Convert to fraction form
18,349,915.57/25,323,613.10 = 10,090,654.99/x - Step 3: Cross multiply
18,349,915.57x = 25,323,613.10 × 10,090,654.99 - Step 4: Simplify right side
18,349,915.57x = 255,531,842,816,422.03 - Step 5: Solve for x
x = 255,531,842,816,422.03/18,349,915.57 - Step 6: Final answer
x = 13,925,505.10
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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.