Finding the Fourth Proportional to 249,170,110.64, 343,844,344.68 and 143,315,475.92
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Solution
The fourth proportional to 249,170,110.64, 343,844,344.68 and 143,315,475.92 is: 197,769,370.39
Step by Step Solution
- Step 1: Write the proportion equation
249,170,110.64 : 343,844,344.68 = 143,315,475.92 : x - Step 2: Convert to fraction form
249,170,110.64/343,844,344.68 = 143,315,475.92/x - Step 3: Cross multiply
249,170,110.64x = 343,844,344.68 × 143,315,475.92 - Step 4: Simplify right side
249,170,110.64x = 49,278,215,900,214,720 - Step 5: Solve for x
x = 49,278,215,900,214,720/249,170,110.64 - Step 6: Final answer
x = 197,769,370.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.