Finding the Fourth Proportional to 18,148,537.30, 25,046,746.42 and 13,556,887.06
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Solution
The fourth proportional to 18,148,537.30, 25,046,746.42 and 13,556,887.06 is: 18,709,822.55
Step by Step Solution
- Step 1: Write the proportion equation
18,148,537.30 : 25,046,746.42 = 13,556,887.06 : x - Step 2: Convert to fraction form
18,148,537.30/25,046,746.42 = 13,556,887.06/x - Step 3: Cross multiply
18,148,537.30x = 25,046,746.42 × 13,556,887.06 - Step 4: Simplify right side
18,148,537.30x = 339,555,912,436,399.38 - Step 5: Solve for x
x = 339,555,912,436,399.38/18,148,537.30 - Step 6: Final answer
x = 18,709,822.55
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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.