Finding the Fourth Proportional to 887,729,486.58, 1,332,120,282.75 and 494,585,378.10
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Solution
The fourth proportional to 887,729,486.58, 1,332,120,282.75 and 494,585,378.10 is: 742,171,149.75
Step by Step Solution
- Step 1: Write the proportion equation
887,729,486.58 : 1,332,120,282.75 = 494,585,378.10 : x - Step 2: Convert to fraction form
887,729,486.58/1,332,120,282.75 = 494,585,378.10/x - Step 3: Cross multiply
887,729,486.58x = 1,332,120,282.75 × 494,585,378.10 - Step 4: Simplify right side
887,729,486.58x = 658,847,213,718,587,648 - Step 5: Solve for x
x = 658,847,213,718,587,648/887,729,486.58 - Step 6: Final answer
x = 742,171,149.75
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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.