Finding the Fourth Proportional to 72,518,247.06, 108,745,450.11 and 38,431,606.74
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Solution
The fourth proportional to 72,518,247.06, 108,745,450.11 and 38,431,606.74 is: 57,630,493.60
Step by Step Solution
- Step 1: Write the proportion equation
72,518,247.06 : 108,745,450.11 = 38,431,606.74 : x - Step 2: Convert to fraction form
72,518,247.06/108,745,450.11 = 38,431,606.74/x - Step 3: Cross multiply
72,518,247.06x = 108,745,450.11 × 38,431,606.74 - Step 4: Simplify right side
72,518,247.06x = 4,179,262,373,391,810 - Step 5: Solve for x
x = 4,179,262,373,391,810/72,518,247.06 - Step 6: Final answer
x = 57,630,493.60
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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.