Finding the Fourth Proportional to 19,879,077.80, 29,808,119.10 and 8,506,677.80
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Solution
The fourth proportional to 19,879,077.80, 29,808,119.10 and 8,506,677.80 is: 12,755,524.55
Step by Step Solution
- Step 1: Write the proportion equation
19,879,077.80 : 29,808,119.10 = 8,506,677.80 : x - Step 2: Convert to fraction form
19,879,077.80/29,808,119.10 = 8,506,677.80/x - Step 3: Cross multiply
19,879,077.80x = 29,808,119.10 × 8,506,677.80 - Step 4: Simplify right side
19,879,077.80x = 253,568,065,007,726 - Step 5: Solve for x
x = 253,568,065,007,726/19,879,077.80 - Step 6: Final answer
x = 12,755,524.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.