Finding the Fourth Proportional to 136,606,901.09, 188,519,019.26 and 74,727,240.26
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Solution
The fourth proportional to 136,606,901.09, 188,519,019.26 and 74,727,240.26 is: 103,124,409.77
Step by Step Solution
- Step 1: Write the proportion equation
136,606,901.09 : 188,519,019.26 = 74,727,240.26 : x - Step 2: Convert to fraction form
136,606,901.09/188,519,019.26 = 74,727,240.26/x - Step 3: Cross multiply
136,606,901.09x = 188,519,019.26 × 74,727,240.26 - Step 4: Simplify right side
136,606,901.09x = 14,087,506,045,919,248 - Step 5: Solve for x
x = 14,087,506,045,919,248/136,606,901.09 - Step 6: Final answer
x = 103,124,409.77
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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.