Finding the Fourth Proportional to 1,608,907,511.20, 2,413,361,266.80 and 874,243,472.80
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Solution
The fourth proportional to 1,608,907,511.20, 2,413,361,266.80 and 874,243,472.80 is: 1,311,365,209.20
Step by Step Solution
- Step 1: Write the proportion equation
1,608,907,511.20 : 2,413,361,266.80 = 874,243,472.80 : x - Step 2: Convert to fraction form
1,608,907,511.20/2,413,361,266.80 = 874,243,472.80/x - Step 3: Cross multiply
1,608,907,511.20x = 2,413,361,266.80 × 874,243,472.80 - Step 4: Simplify right side
1,608,907,511.20x = 2,109,865,335,008,239,360 - Step 5: Solve for x
x = 2,109,865,335,008,239,360/1,608,907,511.20 - Step 6: Final answer
x = 1,311,365,209.20
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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.