Finding the Fourth Proportional to 16,129,751.38, 22,258,990.20 and 8,787,561.98
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Solution
The fourth proportional to 16,129,751.38, 22,258,990.20 and 8,787,561.98 is: 12,126,799.19
Step by Step Solution
- Step 1: Write the proportion equation
16,129,751.38 : 22,258,990.20 = 8,787,561.98 : x - Step 2: Convert to fraction form
16,129,751.38/22,258,990.20 = 8,787,561.98/x - Step 3: Cross multiply
16,129,751.38x = 22,258,990.20 × 8,787,561.98 - Step 4: Simplify right side
16,129,751.38x = 195,602,255,994,712.59 - Step 5: Solve for x
x = 195,602,255,994,712.59/16,129,751.38 - Step 6: Final answer
x = 12,126,799.19
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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.