Finding the Fourth Proportional to 12,318,471,277.11, 18,470,327,860.22 and 3,920,749,536.87
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Solution
The fourth proportional to 12,318,471,277.11, 18,470,327,860.22 and 3,920,749,536.87 is: 5,878,775,683.66
Step by Step Solution
- Step 1: Write the proportion equation
12,318,471,277.11 : 18,470,327,860.22 = 3,920,749,536.87 : x - Step 2: Convert to fraction form
12,318,471,277.11/18,470,327,860.22 = 3,920,749,536.87/x - Step 3: Cross multiply
12,318,471,277.11x = 18,470,327,860.22 × 3,920,749,536.87 - Step 4: Simplify right side
12,318,471,277.11x = 72,417,529,403,775,016,960 - Step 5: Solve for x
x = 72,417,529,403,775,016,960/12,318,471,277.11 - Step 6: Final answer
x = 5,878,775,683.66
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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.