Finding the Fourth Proportional to 139,203,409.68, 208,844,208 and 40,837,437.36
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Solution
The fourth proportional to 139,203,409.68, 208,844,208 and 40,837,437.36 is: 61,267,624.71
Step by Step Solution
- Step 1: Write the proportion equation
139,203,409.68 : 208,844,208 = 40,837,437.36 : x - Step 2: Convert to fraction form
139,203,409.68/208,844,208 = 40,837,437.36/x - Step 3: Cross multiply
139,203,409.68x = 208,844,208 × 40,837,437.36 - Step 4: Simplify right side
139,203,409.68x = 8,528,662,262,198,811 - Step 5: Solve for x
x = 8,528,662,262,198,811/139,203,409.68 - Step 6: Final answer
x = 61,267,624.71
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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.