Finding the Fourth Proportional to 472,393,938.70, 708,590,908.05 and 324,440,764.30
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Solution
The fourth proportional to 472,393,938.70, 708,590,908.05 and 324,440,764.30 is: 486,661,146.45
Step by Step Solution
- Step 1: Write the proportion equation
472,393,938.70 : 708,590,908.05 = 324,440,764.30 : x - Step 2: Convert to fraction form
472,393,938.70/708,590,908.05 = 324,440,764.30/x - Step 3: Cross multiply
472,393,938.70x = 708,590,908.05 × 324,440,764.30 - Step 4: Simplify right side
472,393,938.70x = 229,895,775,783,773,024 - Step 5: Solve for x
x = 229,895,775,783,773,024/472,393,938.70 - Step 6: Final answer
x = 486,661,146.45
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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.