Finding the Fourth Proportional to 132,860,515.20, 199,290,772.80 and 84,552,528.30
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Solution
The fourth proportional to 132,860,515.20, 199,290,772.80 and 84,552,528.30 is: 126,828,792.45
Step by Step Solution
- Step 1: Write the proportion equation
132,860,515.20 : 199,290,772.80 = 84,552,528.30 : x - Step 2: Convert to fraction form
132,860,515.20/199,290,772.80 = 84,552,528.30/x - Step 3: Cross multiply
132,860,515.20x = 199,290,772.80 × 84,552,528.30 - Step 4: Simplify right side
132,860,515.20x = 16,850,538,707,100,870 - Step 5: Solve for x
x = 16,850,538,707,100,870/132,860,515.20 - Step 6: Final answer
x = 126,828,792.45
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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.