Finding the Fourth Proportional to 265,721,947.20, 398,582,920.80 and 93,216,198.60
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Solution
The fourth proportional to 265,721,947.20, 398,582,920.80 and 93,216,198.60 is: 139,824,297.90
Step by Step Solution
- Step 1: Write the proportion equation
265,721,947.20 : 398,582,920.80 = 93,216,198.60 : x - Step 2: Convert to fraction form
265,721,947.20/398,582,920.80 = 93,216,198.60/x - Step 3: Cross multiply
265,721,947.20x = 398,582,920.80 × 93,216,198.60 - Step 4: Simplify right side
265,721,947.20x = 37,154,384,703,860,872 - Step 5: Solve for x
x = 37,154,384,703,860,872/265,721,947.20 - Step 6: Final answer
x = 139,824,297.90
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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.