Finding the Fourth Proportional to 1,484,469,415.68, 2,048,445,826.56 and 815,379,882.24
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Solution
The fourth proportional to 1,484,469,415.68, 2,048,445,826.56 and 815,379,882.24 is: 1,125,157,244.19
Step by Step Solution
- Step 1: Write the proportion equation
1,484,469,415.68 : 2,048,445,826.56 = 815,379,882.24 : x - Step 2: Convert to fraction form
1,484,469,415.68/2,048,445,826.56 = 815,379,882.24/x - Step 3: Cross multiply
1,484,469,415.68x = 2,048,445,826.56 × 815,379,882.24 - Step 4: Simplify right side
1,484,469,415.68x = 1,670,261,516,835,512,320 - Step 5: Solve for x
x = 1,670,261,516,835,512,320/1,484,469,415.68 - Step 6: Final answer
x = 1,125,157,244.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.