Finding the Fourth Proportional to 1,577,948,194.40, 2,366,922,291.60 and 658,484,405.60
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Solution
The fourth proportional to 1,577,948,194.40, 2,366,922,291.60 and 658,484,405.60 is: 987,726,608.40
Step by Step Solution
- Step 1: Write the proportion equation
1,577,948,194.40 : 2,366,922,291.60 = 658,484,405.60 : x - Step 2: Convert to fraction form
1,577,948,194.40/2,366,922,291.60 = 658,484,405.60/x - Step 3: Cross multiply
1,577,948,194.40x = 2,366,922,291.60 × 658,484,405.60 - Step 4: Simplify right side
1,577,948,194.40x = 1,558,581,418,285,615,872 - Step 5: Solve for x
x = 1,558,581,418,285,615,872/1,577,948,194.40 - Step 6: Final answer
x = 987,726,608.40
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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.