Finding the Fourth Proportional to 1,230,599,872.14, 1,698,227,906.40 and 673,682,919.20
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Solution
The fourth proportional to 1,230,599,872.14, 1,698,227,906.40 and 673,682,919.20 is: 929,682,473.85
Step by Step Solution
- Step 1: Write the proportion equation
1,230,599,872.14 : 1,698,227,906.40 = 673,682,919.20 : x - Step 2: Convert to fraction form
1,230,599,872.14/1,698,227,906.40 = 673,682,919.20/x - Step 3: Cross multiply
1,230,599,872.14x = 1,698,227,906.40 × 673,682,919.20 - Step 4: Simplify right side
1,230,599,872.14x = 1,144,067,133,454,701,952 - Step 5: Solve for x
x = 1,144,067,133,454,701,952/1,230,599,872.14 - Step 6: Final answer
x = 929,682,473.85
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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.