Finding the Fourth Proportional to 21,271,211.99, 31,914,859.31 and 8,326,613.91
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Solution
The fourth proportional to 21,271,211.99, 31,914,859.31 and 8,326,613.91 is: 12,493,068.64
Step by Step Solution
- Step 1: Write the proportion equation
21,271,211.99 : 31,914,859.31 = 8,326,613.91 : x - Step 2: Convert to fraction form
21,271,211.99/31,914,859.31 = 8,326,613.91/x - Step 3: Cross multiply
21,271,211.99x = 31,914,859.31 × 8,326,613.91 - Step 4: Simplify right side
21,271,211.99x = 265,742,711,466,339 - Step 5: Solve for x
x = 265,742,711,466,339/21,271,211.99 - Step 6: Final answer
x = 12,493,068.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.