Finding the Fourth Proportional to 15,675,117.77, 21,632,729.79 and 8,706,592.19
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Solution
The fourth proportional to 15,675,117.77, 21,632,729.79 and 8,706,592.19 is: 12,015,690.02
Step by Step Solution
- Step 1: Write the proportion equation
15,675,117.77 : 21,632,729.79 = 8,706,592.19 : x - Step 2: Convert to fraction form
15,675,117.77/21,632,729.79 = 8,706,592.19/x - Step 3: Cross multiply
15,675,117.77x = 21,632,729.79 × 8,706,592.19 - Step 4: Simplify right side
15,675,117.77x = 188,347,356,129,830.69 - Step 5: Solve for x
x = 188,347,356,129,830.69/15,675,117.77 - Step 6: Final answer
x = 12,015,690.02
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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.