Finding the Fourth Proportional to 1,264,618,035.12, 1,745,355,434.04 and 728,667,052.94
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Solution
The fourth proportional to 1,264,618,035.12, 1,745,355,434.04 and 728,667,052.94 is: 1,005,665,714.96
Step by Step Solution
- Step 1: Write the proportion equation
1,264,618,035.12 : 1,745,355,434.04 = 728,667,052.94 : x - Step 2: Convert to fraction form
1,264,618,035.12/1,745,355,434.04 = 728,667,052.94/x - Step 3: Cross multiply
1,264,618,035.12x = 1,745,355,434.04 × 728,667,052.94 - Step 4: Simplify right side
1,264,618,035.12x = 1,271,783,000,446,014,464 - Step 5: Solve for x
x = 1,271,783,000,446,014,464/1,264,618,035.12 - Step 6: Final answer
x = 1,005,665,714.96
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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.