Finding the Fourth Proportional to 1,967,630,866.46, 2,951,446,299.90 and 657,532,918.95
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Solution
The fourth proportional to 1,967,630,866.46, 2,951,446,299.90 and 657,532,918.95 is: 986,299,378.49
Step by Step Solution
- Step 1: Write the proportion equation
1,967,630,866.46 : 2,951,446,299.90 = 657,532,918.95 : x - Step 2: Convert to fraction form
1,967,630,866.46/2,951,446,299.90 = 657,532,918.95/x - Step 3: Cross multiply
1,967,630,866.46x = 2,951,446,299.90 × 657,532,918.95 - Step 4: Simplify right side
1,967,630,866.46x = 1,940,673,100,694,136,576 - Step 5: Solve for x
x = 1,940,673,100,694,136,576/1,967,630,866.46 - Step 6: Final answer
x = 986,299,378.49
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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.