Finding the Fourth Proportional to 5,639,431,536.96, 7,782,625,550.88 and 3,381,738,637.92
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Solution
The fourth proportional to 5,639,431,536.96, 7,782,625,550.88 and 3,381,738,637.92 is: 4,666,925,266.74
Step by Step Solution
- Step 1: Write the proportion equation
5,639,431,536.96 : 7,782,625,550.88 = 3,381,738,637.92 : x - Step 2: Convert to fraction form
5,639,431,536.96/7,782,625,550.88 = 3,381,738,637.92/x - Step 3: Cross multiply
5,639,431,536.96x = 7,782,625,550.88 × 3,381,738,637.92 - Step 4: Simplify right side
5,639,431,536.96x = 26,318,805,529,874,321,408 - Step 5: Solve for x
x = 26,318,805,529,874,321,408/5,639,431,536.96 - Step 6: Final answer
x = 4,666,925,266.74
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1.5x scale
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.