Finding the Fourth Proportional to 168,401,716.20, 252,602,574.30 and 143,742,853.80
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Solution
The fourth proportional to 168,401,716.20, 252,602,574.30 and 143,742,853.80 is: 215,614,280.70
Step by Step Solution
- Step 1: Write the proportion equation
168,401,716.20 : 252,602,574.30 = 143,742,853.80 : x - Step 2: Convert to fraction form
168,401,716.20/252,602,574.30 = 143,742,853.80/x - Step 3: Cross multiply
168,401,716.20x = 252,602,574.30 × 143,742,853.80 - Step 4: Simplify right side
168,401,716.20x = 36,309,814,907,108,544 - Step 5: Solve for x
x = 36,309,814,907,108,544/168,401,716.20 - Step 6: Final answer
x = 215,614,280.70
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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.