Finding the Fourth Proportional to 72,110,420.19, 99,517,262.24 and 40,737,588.09
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Solution
The fourth proportional to 72,110,420.19, 99,517,262.24 and 40,737,588.09 is: 56,220,629.78
Step by Step Solution
- Step 1: Write the proportion equation
72,110,420.19 : 99,517,262.24 = 40,737,588.09 : x - Step 2: Convert to fraction form
72,110,420.19/99,517,262.24 = 40,737,588.09/x - Step 3: Cross multiply
72,110,420.19x = 99,517,262.24 × 40,737,588.09 - Step 4: Simplify right side
72,110,420.19x = 4,054,093,236,773,943 - Step 5: Solve for x
x = 4,054,093,236,773,943/72,110,420.19 - Step 6: Final answer
x = 56,220,629.78
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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.