Finding the Fourth Proportional to 1,031,438,896.80, 1,543,757,122.80 and 725,328,880.80
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Solution
The fourth proportional to 1,031,438,896.80, 1,543,757,122.80 and 725,328,880.80 is: 1,085,601,512.20
Step by Step Solution
- Step 1: Write the proportion equation
1,031,438,896.80 : 1,543,757,122.80 = 725,328,880.80 : x - Step 2: Convert to fraction form
1,031,438,896.80/1,543,757,122.80 = 725,328,880.80/x - Step 3: Cross multiply
1,031,438,896.80x = 1,543,757,122.80 × 725,328,880.80 - Step 4: Simplify right side
1,031,438,896.80x = 1,119,731,626,107,552,000 - Step 5: Solve for x
x = 1,119,731,626,107,552,000/1,031,438,896.80 - Step 6: Final answer
x = 1,085,601,512.20
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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.