Finding the Fourth Proportional to 87,855,677.88, 121,240,625.58 and 48,163,137.72
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Solution
The fourth proportional to 87,855,677.88, 121,240,625.58 and 48,163,137.72 is: 66,465,014.99
Step by Step Solution
- Step 1: Write the proportion equation
87,855,677.88 : 121,240,625.58 = 48,163,137.72 : x - Step 2: Convert to fraction form
87,855,677.88/121,240,625.58 = 48,163,137.72/x - Step 3: Cross multiply
87,855,677.88x = 121,240,625.58 × 48,163,137.72 - Step 4: Simplify right side
87,855,677.88x = 5,839,328,947,068,495 - Step 5: Solve for x
x = 5,839,328,947,068,495/87,855,677.88 - Step 6: Final answer
x = 66,465,014.99
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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.