Finding the Fourth Proportional to 5,430,275.19, 8,145,405.63 and 1,386,765.90
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Solution
The fourth proportional to 5,430,275.19, 8,145,405.63 and 1,386,765.90 is: 2,080,147.02
Step by Step Solution
- Step 1: Write the proportion equation
5,430,275.19 : 8,145,405.63 = 1,386,765.90 : x - Step 2: Convert to fraction form
5,430,275.19/8,145,405.63 = 1,386,765.90/x - Step 3: Cross multiply
5,430,275.19x = 8,145,405.63 × 1,386,765.90 - Step 4: Simplify right side
5,430,275.19x = 11,295,770,769,352.02 - Step 5: Solve for x
x = 11,295,770,769,352.02/5,430,275.19 - Step 6: Final answer
x = 2,080,147.02
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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.