Finding the Fourth Proportional to 8,382,780,216.40, 12,574,170,324.60 and 2,488,249,220.80
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Solution
The fourth proportional to 8,382,780,216.40, 12,574,170,324.60 and 2,488,249,220.80 is: 3,732,373,831.20
Step by Step Solution
- Step 1: Write the proportion equation
8,382,780,216.40 : 12,574,170,324.60 = 2,488,249,220.80 : x - Step 2: Convert to fraction form
8,382,780,216.40/12,574,170,324.60 = 2,488,249,220.80/x - Step 3: Cross multiply
8,382,780,216.40x = 12,574,170,324.60 × 2,488,249,220.80 - Step 4: Simplify right side
8,382,780,216.40x = 31,287,669,512,392,437,760 - Step 5: Solve for x
x = 31,287,669,512,392,437,760/8,382,780,216.40 - Step 6: Final answer
x = 3,732,373,831.20
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Double scale
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Similar ratio
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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.