Finding the Fourth Proportional to 1,967,630,866.21, 2,951,446,299.52 and 657,532,918.70
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Solution
The fourth proportional to 1,967,630,866.21, 2,951,446,299.52 and 657,532,918.70 is: 986,299,378.12
Step by Step Solution
- Step 1: Write the proportion equation
1,967,630,866.21 : 2,951,446,299.52 = 657,532,918.70 : x - Step 2: Convert to fraction form
1,967,630,866.21/2,951,446,299.52 = 657,532,918.70/x - Step 3: Cross multiply
1,967,630,866.21x = 2,951,446,299.52 × 657,532,918.70 - Step 4: Simplify right side
1,967,630,866.21x = 1,940,673,099,709,700,096 - Step 5: Solve for x
x = 1,940,673,099,709,700,096/1,967,630,866.21 - Step 6: Final answer
x = 986,299,378.12
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1.5x scale
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.