Finding the Fourth Proportional to 115,743,746.88, 159,653,716.96 and 68,667,491.14
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Solution
The fourth proportional to 115,743,746.88, 159,653,716.96 and 68,667,491.14 is: 94,718,034.37
Step by Step Solution
- Step 1: Write the proportion equation
115,743,746.88 : 159,653,716.96 = 68,667,491.14 : x - Step 2: Convert to fraction form
115,743,746.88/159,653,716.96 = 68,667,491.14/x - Step 3: Cross multiply
115,743,746.88x = 159,653,716.96 × 68,667,491.14 - Step 4: Simplify right side
115,743,746.88x = 10,963,020,194,818,868 - Step 5: Solve for x
x = 10,963,020,194,818,868/115,743,746.88 - Step 6: Final answer
x = 94,718,034.37
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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.