Finding the Fourth Proportional to 66,432,391.20, 99,648,586.80 and 60,373,963.80
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Solution
The fourth proportional to 66,432,391.20, 99,648,586.80 and 60,373,963.80 is: 90,560,945.70
Step by Step Solution
- Step 1: Write the proportion equation
66,432,391.20 : 99,648,586.80 = 60,373,963.80 : x - Step 2: Convert to fraction form
66,432,391.20/99,648,586.80 = 60,373,963.80/x - Step 3: Cross multiply
66,432,391.20x = 99,648,586.80 × 60,373,963.80 - Step 4: Simplify right side
66,432,391.20x = 6,016,180,172,184,357 - Step 5: Solve for x
x = 6,016,180,172,184,357/66,432,391.20 - Step 6: Final answer
x = 90,560,945.70
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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.