Finding the Fourth Proportional to 3,975,519.08, 5,486,193.06 and 2,164,678.76
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Solution
The fourth proportional to 3,975,519.08, 5,486,193.06 and 2,164,678.76 is: 2,987,244.02
Step by Step Solution
- Step 1: Write the proportion equation
3,975,519.08 : 5,486,193.06 = 2,164,678.76 : x - Step 2: Convert to fraction form
3,975,519.08/5,486,193.06 = 2,164,678.76/x - Step 3: Cross multiply
3,975,519.08x = 5,486,193.06 × 2,164,678.76 - Step 4: Simplify right side
3,975,519.08x = 11,875,845,590,241.40 - Step 5: Solve for x
x = 11,875,845,590,241.40/3,975,519.08 - Step 6: Final answer
x = 2,987,244.02
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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.