Finding the Fourth Proportional to 201,471,816.80, 302,207,725.20 and 185,347,503.20
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Solution
The fourth proportional to 201,471,816.80, 302,207,725.20 and 185,347,503.20 is: 278,021,254.80
Step by Step Solution
- Step 1: Write the proportion equation
201,471,816.80 : 302,207,725.20 = 185,347,503.20 : x - Step 2: Convert to fraction form
201,471,816.80/302,207,725.20 = 185,347,503.20/x - Step 3: Cross multiply
201,471,816.80x = 302,207,725.20 × 185,347,503.20 - Step 4: Simplify right side
201,471,816.80x = 56,013,447,313,571,712 - Step 5: Solve for x
x = 56,013,447,313,571,712/201,471,816.80 - Step 6: Final answer
x = 278,021,254.80
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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.