Finding the Fourth Proportional to 236,197,961.40, 354,296,942.10 and 139,103,690.70
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Solution
The fourth proportional to 236,197,961.40, 354,296,942.10 and 139,103,690.70 is: 208,655,536.05
Step by Step Solution
- Step 1: Write the proportion equation
236,197,961.40 : 354,296,942.10 = 139,103,690.70 : x - Step 2: Convert to fraction form
236,197,961.40/354,296,942.10 = 139,103,690.70/x - Step 3: Cross multiply
236,197,961.40x = 354,296,942.10 × 139,103,690.70 - Step 4: Simplify right side
236,197,961.40x = 49,284,012,249,834,208 - Step 5: Solve for x
x = 49,284,012,249,834,208/236,197,961.40 - Step 6: Final answer
x = 208,655,536.05
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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.