Finding the Fourth Proportional to 2,989,375,746.40, 4,484,063,619.60 and 2,214,534,768.40
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Solution
The fourth proportional to 2,989,375,746.40, 4,484,063,619.60 and 2,214,534,768.40 is: 3,321,802,152.60
Step by Step Solution
- Step 1: Write the proportion equation
2,989,375,746.40 : 4,484,063,619.60 = 2,214,534,768.40 : x - Step 2: Convert to fraction form
2,989,375,746.40/4,484,063,619.60 = 2,214,534,768.40/x - Step 3: Cross multiply
2,989,375,746.40x = 4,484,063,619.60 × 2,214,534,768.40 - Step 4: Simplify right side
2,989,375,746.40x = 9,930,114,789,321,752,576 - Step 5: Solve for x
x = 9,930,114,789,321,752,576/2,989,375,746.40 - Step 6: Final answer
x = 3,321,802,152.60
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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.