Finding the Fourth Proportional to 115,418,301.84, 159,275,310.12 and 63,908,971.92
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Solution
The fourth proportional to 115,418,301.84, 159,275,310.12 and 63,908,971.92 is: 88,193,303.49
Step by Step Solution
- Step 1: Write the proportion equation
115,418,301.84 : 159,275,310.12 = 63,908,971.92 : x - Step 2: Convert to fraction form
115,418,301.84/159,275,310.12 = 63,908,971.92/x - Step 3: Cross multiply
115,418,301.84x = 159,275,310.12 × 63,908,971.92 - Step 4: Simplify right side
115,418,301.84x = 10,179,121,322,008,372 - Step 5: Solve for x
x = 10,179,121,322,008,372/115,418,301.84 - Step 6: Final answer
x = 88,193,303.49
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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.