Finding the Fourth Proportional to 18,662,854.70, 27,990,080.85 and 6,695,590.70
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Solution
The fourth proportional to 18,662,854.70, 27,990,080.85 and 6,695,590.70 is: 10,041,878.80
Step by Step Solution
- Step 1: Write the proportion equation
18,662,854.70 : 27,990,080.85 = 6,695,590.70 : x - Step 2: Convert to fraction form
18,662,854.70/27,990,080.85 = 6,695,590.70/x - Step 3: Cross multiply
18,662,854.70x = 27,990,080.85 × 6,695,590.70 - Step 4: Simplify right side
18,662,854.70x = 187,410,125,031,508.12 - Step 5: Solve for x
x = 187,410,125,031,508.12/18,662,854.70 - Step 6: Final answer
x = 10,041,878.80
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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.