Finding the Fourth Proportional to 122,379,803.70, 183,516,561.45 and 40,467,030.90
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Solution
The fourth proportional to 122,379,803.70, 183,516,561.45 and 40,467,030.90 is: 60,682,973.32
Step by Step Solution
- Step 1: Write the proportion equation
122,379,803.70 : 183,516,561.45 = 40,467,030.90 : x - Step 2: Convert to fraction form
122,379,803.70/183,516,561.45 = 40,467,030.90/x - Step 3: Cross multiply
122,379,803.70x = 183,516,561.45 × 40,467,030.90 - Step 4: Simplify right side
122,379,803.70x = 7,426,370,362,858,898 - Step 5: Solve for x
x = 7,426,370,362,858,898/122,379,803.70 - Step 6: Final answer
x = 60,682,973.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.