Finding the Fourth Proportional to 1,516,261,910.64, 2,092,311,572.04 and 872,538,697.68
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Solution
The fourth proportional to 1,516,261,910.64, 2,092,311,572.04 and 872,538,697.68 is: 1,204,028,671.69
Step by Step Solution
- Step 1: Write the proportion equation
1,516,261,910.64 : 2,092,311,572.04 = 872,538,697.68 : x - Step 2: Convert to fraction form
1,516,261,910.64/2,092,311,572.04 = 872,538,697.68/x - Step 3: Cross multiply
1,516,261,910.64x = 2,092,311,572.04 × 872,538,697.68 - Step 4: Simplify right side
1,516,261,910.64x = 1,825,622,814,208,574,976 - Step 5: Solve for x
x = 1,825,622,814,208,574,976/1,516,261,910.64 - Step 6: Final answer
x = 1,204,028,671.69
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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.