Finding the Fourth Proportional to 15,614,879.51, 21,549,207.24 and 8,645,557.10
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Solution
The fourth proportional to 15,614,879.51, 21,549,207.24 and 8,645,557.10 is: 11,931,241.70
Step by Step Solution
- Step 1: Write the proportion equation
15,614,879.51 : 21,549,207.24 = 8,645,557.10 : x - Step 2: Convert to fraction form
15,614,879.51/21,549,207.24 = 8,645,557.10/x - Step 3: Cross multiply
15,614,879.51x = 21,549,207.24 × 8,645,557.10 - Step 4: Simplify right side
15,614,879.51x = 186,304,901,545,407.38 - Step 5: Solve for x
x = 186,304,901,545,407.38/15,614,879.51 - Step 6: Final answer
x = 11,931,241.70
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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.