Finding the Fourth Proportional to 12,139,613.99, 18,210,646.65 and 3,941,913.44
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Solution
The fourth proportional to 12,139,613.99, 18,210,646.65 and 3,941,913.44 is: 5,913,268.15
Step by Step Solution
- Step 1: Write the proportion equation
12,139,613.99 : 18,210,646.65 = 3,941,913.44 : x - Step 2: Convert to fraction form
12,139,613.99/18,210,646.65 = 3,941,913.44/x - Step 3: Cross multiply
12,139,613.99x = 18,210,646.65 × 3,941,913.44 - Step 4: Simplify right side
12,139,613.99x = 71,784,792,689,672.73 - Step 5: Solve for x
x = 71,784,792,689,672.73/12,139,613.99 - Step 6: Final answer
x = 5,913,268.15
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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.