Finding the Fourth Proportional to 17,390,721.18, 26,086,083.39 and 5,423,457.18
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Solution
The fourth proportional to 17,390,721.18, 26,086,083.39 and 5,423,457.18 is: 8,135,186.28
Step by Step Solution
- Step 1: Write the proportion equation
17,390,721.18 : 26,086,083.39 = 5,423,457.18 : x - Step 2: Convert to fraction form
17,390,721.18/26,086,083.39 = 5,423,457.18/x - Step 3: Cross multiply
17,390,721.18x = 26,086,083.39 × 5,423,457.18 - Step 4: Simplify right side
17,390,721.18x = 141,476,756,259,574.25 - Step 5: Solve for x
x = 141,476,756,259,574.25/17,390,721.18 - Step 6: Final answer
x = 8,135,186.28
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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.