Finding the Fourth Proportional to 87,841,554.39, 121,221,356.35 and 48,685,859.01
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Solution
The fourth proportional to 87,841,554.39, 121,221,356.35 and 48,685,859.01 is: 67,186,491.70
Step by Step Solution
- Step 1: Write the proportion equation
87,841,554.39 : 121,221,356.35 = 48,685,859.01 : x - Step 2: Convert to fraction form
87,841,554.39/121,221,356.35 = 48,685,859.01/x - Step 3: Cross multiply
87,841,554.39x = 121,221,356.35 × 48,685,859.01 - Step 4: Simplify right side
87,841,554.39x = 5,901,765,864,772,505 - Step 5: Solve for x
x = 5,901,765,864,772,505/87,841,554.39 - Step 6: Final answer
x = 67,186,491.70
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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.