Finding the Fourth Proportional to 132,389,234.60, 198,583,851.90 and 91,574,565.80
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Solution
The fourth proportional to 132,389,234.60, 198,583,851.90 and 91,574,565.80 is: 137,361,848.70
Step by Step Solution
- Step 1: Write the proportion equation
132,389,234.60 : 198,583,851.90 = 91,574,565.80 : x - Step 2: Convert to fraction form
132,389,234.60/198,583,851.90 = 91,574,565.80/x - Step 3: Cross multiply
132,389,234.60x = 198,583,851.90 × 91,574,565.80 - Step 4: Simplify right side
132,389,234.60x = 18,185,230,012,634,004 - Step 5: Solve for x
x = 18,185,230,012,634,004/132,389,234.60 - Step 6: Final answer
x = 137,361,848.70
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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.