Finding the Fourth Proportional to 122,379,749.20, 183,516,479.70 and 40,466,976.40
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Solution
The fourth proportional to 122,379,749.20, 183,516,479.70 and 40,466,976.40 is: 60,682,891.59
Step by Step Solution
- Step 1: Write the proportion equation
122,379,749.20 : 183,516,479.70 = 40,466,976.40 : x - Step 2: Convert to fraction form
122,379,749.20/183,516,479.70 = 40,466,976.40/x - Step 3: Cross multiply
122,379,749.20x = 183,516,479.70 × 40,466,976.40 - Step 4: Simplify right side
122,379,749.20x = 7,426,357,053,030,978 - Step 5: Solve for x
x = 7,426,357,053,030,978/122,379,749.20 - Step 6: Final answer
x = 60,682,891.59
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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.