Finding the Fourth Proportional to 25,545,397.49, 35,298,761.81 and 18,190,461.63
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Solution
The fourth proportional to 25,545,397.49, 35,298,761.81 and 18,190,461.63 is: 25,135,673.56
Step by Step Solution
- Step 1: Write the proportion equation
25,545,397.49 : 35,298,761.81 = 18,190,461.63 : x - Step 2: Convert to fraction form
25,545,397.49/35,298,761.81 = 18,190,461.63/x - Step 3: Cross multiply
25,545,397.49x = 35,298,761.81 × 18,190,461.63 - Step 4: Simplify right side
25,545,397.49x = 642,100,772,291,314.38 - Step 5: Solve for x
x = 642,100,772,291,314.38/25,545,397.49 - Step 6: Final answer
x = 25,135,673.56
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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.