Finding the Fourth Proportional to 87,995,388.84, 121,427,979.71 and 48,837,192.12
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Solution
The fourth proportional to 87,995,388.84, 121,427,979.71 and 48,837,192.12 is: 67,392,185.57
Step by Step Solution
- Step 1: Write the proportion equation
87,995,388.84 : 121,427,979.71 = 48,837,192.12 : x - Step 2: Convert to fraction form
87,995,388.84/121,427,979.71 = 48,837,192.12/x - Step 3: Cross multiply
87,995,388.84x = 121,427,979.71 × 48,837,192.12 - Step 4: Simplify right side
87,995,388.84x = 5,930,201,573,596,546 - Step 5: Solve for x
x = 5,930,201,573,596,546/87,995,388.84 - Step 6: Final answer
x = 67,392,185.57
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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.