Finding the Fourth Proportional to 122,532,771.44, 169,095,251.22 and 66,778,205.06
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Solution
The fourth proportional to 122,532,771.44, 169,095,251.22 and 66,778,205.06 is: 92,153,937.50
Step by Step Solution
- Step 1: Write the proportion equation
122,532,771.44 : 169,095,251.22 = 66,778,205.06 : x - Step 2: Convert to fraction form
122,532,771.44/169,095,251.22 = 66,778,205.06/x - Step 3: Cross multiply
122,532,771.44x = 169,095,251.22 × 66,778,205.06 - Step 4: Simplify right side
122,532,771.44x = 11,291,877,360,641,376 - Step 5: Solve for x
x = 11,291,877,360,641,376/122,532,771.44 - Step 6: Final answer
x = 92,153,937.50
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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.