Finding the Fourth Proportional to 18,869,449.44, 28,298,700.92 and 7,352,347.80
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Solution
The fourth proportional to 18,869,449.44, 28,298,700.92 and 7,352,347.80 is: 11,026,389.09
Step by Step Solution
- Step 1: Write the proportion equation
18,869,449.44 : 28,298,700.92 = 7,352,347.80 : x - Step 2: Convert to fraction form
18,869,449.44/28,298,700.92 = 7,352,347.80/x - Step 3: Cross multiply
18,869,449.44x = 28,298,700.92 × 7,352,347.80 - Step 4: Simplify right side
18,869,449.44x = 208,061,891,452,019.97 - Step 5: Solve for x
x = 208,061,891,452,019.97/18,869,449.44 - Step 6: Final answer
x = 11,026,389.09
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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.