Finding the Fourth Proportional to 128,111,716.08, 176,806,814.08 and 73,115,800.56
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Solution
The fourth proportional to 128,111,716.08, 176,806,814.08 and 73,115,800.56 is: 100,907,022.02
Step by Step Solution
- Step 1: Write the proportion equation
128,111,716.08 : 176,806,814.08 = 73,115,800.56 : x - Step 2: Convert to fraction form
128,111,716.08/176,806,814.08 = 73,115,800.56/x - Step 3: Cross multiply
128,111,716.08x = 176,806,814.08 × 73,115,800.56 - Step 4: Simplify right side
128,111,716.08x = 12,927,371,755,922,282 - Step 5: Solve for x
x = 12,927,371,755,922,282/128,111,716.08 - Step 6: Final answer
x = 100,907,022.02
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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.