Finding the Fourth Proportional to 458,419,216.80, 686,117,170.80 and 322,370,320.80
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Solution
The fourth proportional to 458,419,216.80, 686,117,170.80 and 322,370,320.80 is: 482,492,453.09
Step by Step Solution
- Step 1: Write the proportion equation
458,419,216.80 : 686,117,170.80 = 322,370,320.80 : x - Step 2: Convert to fraction form
458,419,216.80/686,117,170.80 = 322,370,320.80/x - Step 3: Cross multiply
458,419,216.80x = 686,117,170.80 × 322,370,320.80 - Step 4: Simplify right side
458,419,216.80x = 221,183,812,457,184,384 - Step 5: Solve for x
x = 221,183,812,457,184,384/458,419,216.80 - Step 6: Final answer
x = 482,492,453.09
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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.