Finding the Fourth Proportional to 201,644,440.80, 302,466,661.20 and 99,457,432.80
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Solution
The fourth proportional to 201,644,440.80, 302,466,661.20 and 99,457,432.80 is: 149,186,149.20
Step by Step Solution
- Step 1: Write the proportion equation
201,644,440.80 : 302,466,661.20 = 99,457,432.80 : x - Step 2: Convert to fraction form
201,644,440.80/302,466,661.20 = 99,457,432.80/x - Step 3: Cross multiply
201,644,440.80x = 302,466,661.20 × 99,457,432.80 - Step 4: Simplify right side
201,644,440.80x = 30,082,557,630,539,364 - Step 5: Solve for x
x = 30,082,557,630,539,364/201,644,440.80 - Step 6: Final answer
x = 149,186,149.20
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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.