Finding the Fourth Proportional to 115,812,841.79, 159,821,140.84 and 62,889,076.69
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Solution
The fourth proportional to 115,812,841.79, 159,821,140.84 and 62,889,076.69 is: 86,786,610.43
Step by Step Solution
- Step 1: Write the proportion equation
115,812,841.79 : 159,821,140.84 = 62,889,076.69 : x - Step 2: Convert to fraction form
115,812,841.79/159,821,140.84 = 62,889,076.69/x - Step 3: Cross multiply
115,812,841.79x = 159,821,140.84 × 62,889,076.69 - Step 4: Simplify right side
115,812,841.79x = 10,051,003,982,413,276 - Step 5: Solve for x
x = 10,051,003,982,413,276/115,812,841.79 - Step 6: Final answer
x = 86,786,610.43
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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.