Finding the Fourth Proportional to 18,377,023.20, 27,565,534.80 and 15,507,241.80
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Solution
The fourth proportional to 18,377,023.20, 27,565,534.80 and 15,507,241.80 is: 23,260,862.70
Step by Step Solution
- Step 1: Write the proportion equation
18,377,023.20 : 27,565,534.80 = 15,507,241.80 : x - Step 2: Convert to fraction form
18,377,023.20/27,565,534.80 = 15,507,241.80/x - Step 3: Cross multiply
18,377,023.20x = 27,565,534.80 × 15,507,241.80 - Step 4: Simplify right side
18,377,023.20x = 427,465,413,489,914.69 - Step 5: Solve for x
x = 427,465,413,489,914.69/18,377,023.20 - Step 6: Final answer
x = 23,260,862.70
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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.