Finding the Fourth Proportional to 1,276,959,599.36, 1,762,203,467.67 and 690,248,735.36
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Solution
The fourth proportional to 1,276,959,599.36, 1,762,203,467.67 and 690,248,735.36 is: 952,542,833.47
Step by Step Solution
- Step 1: Write the proportion equation
1,276,959,599.36 : 1,762,203,467.67 = 690,248,735.36 : x - Step 2: Convert to fraction form
1,276,959,599.36/1,762,203,467.67 = 690,248,735.36/x - Step 3: Cross multiply
1,276,959,599.36x = 1,762,203,467.67 × 690,248,735.36 - Step 4: Simplify right side
1,276,959,599.36x = 1,216,358,715,006,224,128 - Step 5: Solve for x
x = 1,216,358,715,006,224,128/1,276,959,599.36 - Step 6: Final answer
x = 952,542,833.47
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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.