Finding the Fourth Proportional to 13,416,398.10, 18,514,078.62 and 7,615,074.42
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Solution
The fourth proportional to 13,416,398.10, 18,514,078.62 and 7,615,074.42 is: 10,508,490.09
Step by Step Solution
- Step 1: Write the proportion equation
13,416,398.10 : 18,514,078.62 = 7,615,074.42 : x - Step 2: Convert to fraction form
13,416,398.10/18,514,078.62 = 7,615,074.42/x - Step 3: Cross multiply
13,416,398.10x = 18,514,078.62 × 7,615,074.42 - Step 4: Simplify right side
13,416,398.10x = 140,986,086,509,030.91 - Step 5: Solve for x
x = 140,986,086,509,030.91/13,416,398.10 - Step 6: Final answer
x = 10,508,490.09
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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.