Finding the Fourth Proportional to 72,110,415.94, 99,517,256.37 and 40,737,583.84
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Solution
The fourth proportional to 72,110,415.94, 99,517,256.37 and 40,737,583.84 is: 56,220,623.91
Step by Step Solution
- Step 1: Write the proportion equation
72,110,415.94 : 99,517,256.37 = 40,737,583.84 : x - Step 2: Convert to fraction form
72,110,415.94/99,517,256.37 = 40,737,583.84/x - Step 3: Cross multiply
72,110,415.94x = 99,517,256.37 × 40,737,583.84 - Step 4: Simplify right side
72,110,415.94x = 4,054,092,574,899,649.50 - Step 5: Solve for x
x = 4,054,092,574,899,649.50/72,110,415.94 - Step 6: Final answer
x = 56,220,623.91
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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.