Finding the Fourth Proportional to 1,310,536,091.26, 1,965,811,485.71 and 437,135,061.90
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Solution
The fourth proportional to 1,310,536,091.26, 1,965,811,485.71 and 437,135,061.90 is: 655,705,044.08
Step by Step Solution
- Step 1: Write the proportion equation
1,310,536,091.26 : 1,965,811,485.71 = 437,135,061.90 : x - Step 2: Convert to fraction form
1,310,536,091.26/1,965,811,485.71 = 437,135,061.90/x - Step 3: Cross multiply
1,310,536,091.26x = 1,965,811,485.71 × 437,135,061.90 - Step 4: Simplify right side
1,310,536,091.26x = 859,325,125,489,571,840 - Step 5: Solve for x
x = 859,325,125,489,571,840/1,310,536,091.26 - Step 6: Final answer
x = 655,705,044.08
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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.