Finding the Fourth Proportional to 5,418,623,254.39, 8,128,245,491.42 and 1,434,603,847.56
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Solution
The fourth proportional to 5,418,623,254.39, 8,128,245,491.42 and 1,434,603,847.56 is: 2,151,988,006.63
Step by Step Solution
- Step 1: Write the proportion equation
5,418,623,254.39 : 8,128,245,491.42 = 1,434,603,847.56 : x - Step 2: Convert to fraction form
5,418,623,254.39/8,128,245,491.42 = 1,434,603,847.56/x - Step 3: Cross multiply
5,418,623,254.39x = 8,128,245,491.42 × 1,434,603,847.56 - Step 4: Simplify right side
5,418,623,254.39x = 11,660,812,255,866,105,856 - Step 5: Solve for x
x = 11,660,812,255,866,105,856/5,418,623,254.39 - Step 6: Final answer
x = 2,151,988,006.63
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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.