Finding the Fourth Proportional to 87,497,752.80, 131,246,629.20 and 87,497,752.80
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Solution
The fourth proportional to 87,497,752.80, 131,246,629.20 and 87,497,752.80 is: 131,246,629.20
Step by Step Solution
- Step 1: Write the proportion equation
87,497,752.80 : 131,246,629.20 = 87,497,752.80 : x - Step 2: Convert to fraction form
87,497,752.80/131,246,629.20 = 87,497,752.80/x - Step 3: Cross multiply
87,497,752.80x = 131,246,629.20 × 87,497,752.80 - Step 4: Simplify right side
87,497,752.80x = 11,483,785,117,574,862 - Step 5: Solve for x
x = 11,483,785,117,574,862/87,497,752.80 - Step 6: Final answer
x = 131,246,629.20
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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.