Finding the Fourth Proportional to 1,207,624,805.48, 1,811,138,026.57 and 517,453,794.92
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Solution
The fourth proportional to 1,207,624,805.48, 1,811,138,026.57 and 517,453,794.92 is: 776,052,496.37
Step by Step Solution
- Step 1: Write the proportion equation
1,207,624,805.48 : 1,811,138,026.57 = 517,453,794.92 : x - Step 2: Convert to fraction form
1,207,624,805.48/1,811,138,026.57 = 517,453,794.92/x - Step 3: Cross multiply
1,207,624,805.48x = 1,811,138,026.57 × 517,453,794.92 - Step 4: Simplify right side
1,207,624,805.48x = 937,180,244,962,217,088 - Step 5: Solve for x
x = 937,180,244,962,217,088/1,207,624,805.48 - Step 6: Final answer
x = 776,052,496.37
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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.