Finding the Fourth Proportional to 18,747,339.36, 28,115,251.96 and 6,613,965.29
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Solution
The fourth proportional to 18,747,339.36, 28,115,251.96 and 6,613,965.29 is: 9,918,916.87
Step by Step Solution
- Step 1: Write the proportion equation
18,747,339.36 : 28,115,251.96 = 6,613,965.29 : x - Step 2: Convert to fraction form
18,747,339.36/28,115,251.96 = 6,613,965.29/x - Step 3: Cross multiply
18,747,339.36x = 28,115,251.96 × 6,613,965.29 - Step 4: Simplify right side
18,747,339.36x = 185,953,300,583,044.47 - Step 5: Solve for x
x = 185,953,300,583,044.47/18,747,339.36 - Step 6: Final answer
x = 9,918,916.87
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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.