Finding the Fourth Proportional to 13,514,807.84, 18,650,438.16 and 7,403,453.60
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Solution
The fourth proportional to 13,514,807.84, 18,650,438.16 and 7,403,453.60 is: 10,216,767.80
Step by Step Solution
- Step 1: Write the proportion equation
13,514,807.84 : 18,650,438.16 = 7,403,453.60 : x - Step 2: Convert to fraction form
13,514,807.84/18,650,438.16 = 7,403,453.60/x - Step 3: Cross multiply
13,514,807.84x = 18,650,438.16 × 7,403,453.60 - Step 4: Simplify right side
13,514,807.84x = 138,077,653,537,229.38 - Step 5: Solve for x
x = 138,077,653,537,229.38/13,514,807.84 - Step 6: Final answer
x = 10,216,767.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.