Finding the Fourth Proportional to 162,104,838.21, 223,704,355.41 and 87,765,378.48
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Solution
The fourth proportional to 162,104,838.21, 223,704,355.41 and 87,765,378.48 is: 121,116,048.34
Step by Step Solution
- Step 1: Write the proportion equation
162,104,838.21 : 223,704,355.41 = 87,765,378.48 : x - Step 2: Convert to fraction form
162,104,838.21/223,704,355.41 = 87,765,378.48/x - Step 3: Cross multiply
162,104,838.21x = 223,704,355.41 × 87,765,378.48 - Step 4: Simplify right side
162,104,838.21x = 19,633,497,420,183,088 - Step 5: Solve for x
x = 19,633,497,420,183,088/162,104,838.21 - Step 6: Final answer
x = 121,116,048.34
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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.