Finding the Fourth Proportional to 90,856,417.57, 125,381,216.67 and 49,603,309.94
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Solution
The fourth proportional to 90,856,417.57, 125,381,216.67 and 49,603,309.94 is: 68,452,218.55
Step by Step Solution
- Step 1: Write the proportion equation
90,856,417.57 : 125,381,216.67 = 49,603,309.94 : x - Step 2: Convert to fraction form
90,856,417.57/125,381,216.67 = 49,603,309.94/x - Step 3: Cross multiply
90,856,417.57x = 125,381,216.67 × 49,603,309.94 - Step 4: Simplify right side
90,856,417.57x = 6,219,323,351,647,179 - Step 5: Solve for x
x = 6,219,323,351,647,179/90,856,417.57 - Step 6: Final answer
x = 68,452,218.55
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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.