Finding the Fourth Proportional to 18,413,790.26, 27,612,665.15 and 5,280,306.21
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Solution
The fourth proportional to 18,413,790.26, 27,612,665.15 and 5,280,306.21 is: 7,918,159.45
Step by Step Solution
- Step 1: Write the proportion equation
18,413,790.26 : 27,612,665.15 = 5,280,306.21 : x - Step 2: Convert to fraction form
18,413,790.26/27,612,665.15 = 5,280,306.21/x - Step 3: Cross multiply
18,413,790.26x = 27,612,665.15 × 5,280,306.21 - Step 4: Simplify right side
18,413,790.26x = 145,803,327,239,794.06 - Step 5: Solve for x
x = 145,803,327,239,794.06/18,413,790.26 - Step 6: Final answer
x = 7,918,159.45
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1.5x scale
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.