Finding the Fourth Proportional to 18,163,799.36, 27,249,057.12 and 5,209,407.68
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Solution
The fourth proportional to 18,163,799.36, 27,249,057.12 and 5,209,407.68 is: 7,815,074.62
Step by Step Solution
- Step 1: Write the proportion equation
18,163,799.36 : 27,249,057.12 = 5,209,407.68 : x - Step 2: Convert to fraction form
18,163,799.36/27,249,057.12 = 5,209,407.68/x - Step 3: Cross multiply
18,163,799.36x = 27,249,057.12 × 5,209,407.68 - Step 4: Simplify right side
18,163,799.36x = 141,951,447,433,686.69 - Step 5: Solve for x
x = 141,951,447,433,686.69/18,163,799.36 - Step 6: Final answer
x = 7,815,074.62
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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.