Finding the Fourth Proportional to 1,301,949,959.63, 1,796,691,644.12 and 715,276,886.99
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Solution
The fourth proportional to 1,301,949,959.63, 1,796,691,644.12 and 715,276,886.99 is: 987,082,488.52
Step by Step Solution
- Step 1: Write the proportion equation
1,301,949,959.63 : 1,796,691,644.12 = 715,276,886.99 : x - Step 2: Convert to fraction form
1,301,949,959.63/1,796,691,644.12 = 715,276,886.99/x - Step 3: Cross multiply
1,301,949,959.63x = 1,796,691,644.12 × 715,276,886.99 - Step 4: Simplify right side
1,301,949,959.63x = 1,285,132,006,079,903,232 - Step 5: Solve for x
x = 1,285,132,006,079,903,232/1,301,949,959.63 - Step 6: Final answer
x = 987,082,488.52
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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.