Finding the Fourth Proportional to 1,345,476,311.20, 2,018,214,466.80 and 880,571,724.40
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Solution
The fourth proportional to 1,345,476,311.20, 2,018,214,466.80 and 880,571,724.40 is: 1,320,857,586.60
Step by Step Solution
- Step 1: Write the proportion equation
1,345,476,311.20 : 2,018,214,466.80 = 880,571,724.40 : x - Step 2: Convert to fraction form
1,345,476,311.20/2,018,214,466.80 = 880,571,724.40/x - Step 3: Cross multiply
1,345,476,311.20x = 2,018,214,466.80 × 880,571,724.40 - Step 4: Simplify right side
1,345,476,311.20x = 1,777,182,593,239,102,464 - Step 5: Solve for x
x = 1,777,182,593,239,102,464/1,345,476,311.20 - Step 6: Final answer
x = 1,320,857,586.60
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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.