Finding the Fourth Proportional to 1,264,325,757.12, 1,896,478,138.76 and 988,209,067.61
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Solution
The fourth proportional to 1,264,325,757.12, 1,896,478,138.76 and 988,209,067.61 is: 1,482,305,396.92
Step by Step Solution
- Step 1: Write the proportion equation
1,264,325,757.12 : 1,896,478,138.76 = 988,209,067.61 : x - Step 2: Convert to fraction form
1,264,325,757.12/1,896,478,138.76 = 988,209,067.61/x - Step 3: Cross multiply
1,264,325,757.12x = 1,896,478,138.76 × 988,209,067.61 - Step 4: Simplify right side
1,264,325,757.12x = 1,874,116,893,246,567,936 - Step 5: Solve for x
x = 1,874,116,893,246,567,936/1,264,325,757.12 - Step 6: Final answer
x = 1,482,305,396.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.