Finding the Fourth Proportional to 1,324,245,235.76, 1,985,678,131.24 and 624,549,502.96
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Solution
The fourth proportional to 1,324,245,235.76, 1,985,678,131.24 and 624,549,502.96 is: 936,498,962.89
Step by Step Solution
- Step 1: Write the proportion equation
1,324,245,235.76 : 1,985,678,131.24 = 624,549,502.96 : x - Step 2: Convert to fraction form
1,324,245,235.76/1,985,678,131.24 = 624,549,502.96/x - Step 3: Cross multiply
1,324,245,235.76x = 1,985,678,131.24 × 624,549,502.96 - Step 4: Simplify right side
1,324,245,235.76x = 1,240,154,289,904,483,840 - Step 5: Solve for x
x = 1,240,154,289,904,483,840/1,324,245,235.76 - Step 6: Final answer
x = 936,498,962.89
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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.