Finding the Fourth Proportional to 1,432,119,219.39, 2,148,179,425.65 and 644,252,617.62
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Solution
The fourth proportional to 1,432,119,219.39, 2,148,179,425.65 and 644,252,617.62 is: 966,379,194.80
Step by Step Solution
- Step 1: Write the proportion equation
1,432,119,219.39 : 2,148,179,425.65 = 644,252,617.62 : x - Step 2: Convert to fraction form
1,432,119,219.39/2,148,179,425.65 = 644,252,617.62/x - Step 3: Cross multiply
1,432,119,219.39x = 2,148,179,425.65 × 644,252,617.62 - Step 4: Simplify right side
1,432,119,219.39x = 1,383,970,218,092,440,832 - Step 5: Solve for x
x = 1,383,970,218,092,440,832/1,432,119,219.39 - Step 6: Final answer
x = 966,379,194.80
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1.5x scale
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.