Finding the Fourth Proportional to 2,124,583,476.98, 3,186,881,194.22 and 814,886,990.56
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Solution
The fourth proportional to 2,124,583,476.98, 3,186,881,194.22 and 814,886,990.56 is: 1,222,332,778.99
Step by Step Solution
- Step 1: Write the proportion equation
2,124,583,476.98 : 3,186,881,194.22 = 814,886,990.56 : x - Step 2: Convert to fraction form
2,124,583,476.98/3,186,881,194.22 = 814,886,990.56/x - Step 3: Cross multiply
2,124,583,476.98x = 3,186,881,194.22 × 814,886,990.56 - Step 4: Simplify right side
2,124,583,476.98x = 2,596,948,025,624,264,704 - Step 5: Solve for x
x = 2,596,948,025,624,264,704/2,124,583,476.98 - Step 6: Final answer
x = 1,222,332,778.99
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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.