Finding the Fourth Proportional to 121,442,352.42, 182,163,385.86 and 39,561,096.72
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Solution
The fourth proportional to 121,442,352.42, 182,163,385.86 and 39,561,096.72 is: 59,341,598.57
Step by Step Solution
- Step 1: Write the proportion equation
121,442,352.42 : 182,163,385.86 = 39,561,096.72 : x - Step 2: Convert to fraction form
121,442,352.42/182,163,385.86 = 39,561,096.72/x - Step 3: Cross multiply
121,442,352.42x = 182,163,385.86 × 39,561,096.72 - Step 4: Simplify right side
121,442,352.42x = 7,206,583,326,850,141 - Step 5: Solve for x
x = 7,206,583,326,850,141/121,442,352.42 - Step 6: Final answer
x = 59,341,598.57
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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.