Finding the Fourth Proportional to 72,578,081.70, 108,867,122.55 and 29,467,937.70
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Solution
The fourth proportional to 72,578,081.70, 108,867,122.55 and 29,467,937.70 is: 44,201,906.55
Step by Step Solution
- Step 1: Write the proportion equation
72,578,081.70 : 108,867,122.55 = 29,467,937.70 : x - Step 2: Convert to fraction form
72,578,081.70/108,867,122.55 = 29,467,937.70/x - Step 3: Cross multiply
72,578,081.70x = 108,867,122.55 × 29,467,937.70 - Step 4: Simplify right side
72,578,081.70x = 3,208,089,584,881,665 - Step 5: Solve for x
x = 3,208,089,584,881,665/72,578,081.70 - Step 6: Final answer
x = 44,201,906.55
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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.