Finding the Fourth Proportional to 289,656,768.80, 434,485,153.20 and 167,212,762.40
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Solution
The fourth proportional to 289,656,768.80, 434,485,153.20 and 167,212,762.40 is: 250,819,143.60
Step by Step Solution
- Step 1: Write the proportion equation
289,656,768.80 : 434,485,153.20 = 167,212,762.40 : x - Step 2: Convert to fraction form
289,656,768.80/434,485,153.20 = 167,212,762.40/x - Step 3: Cross multiply
289,656,768.80x = 434,485,153.20 × 167,212,762.40 - Step 4: Simplify right side
289,656,768.80x = 72,651,462,688,359,200 - Step 5: Solve for x
x = 72,651,462,688,359,200/289,656,768.80 - Step 6: Final answer
x = 250,819,143.60
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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.