Finding the Fourth Proportional to 765,802,847.32, 1,149,038,392.68 and 268,170,528.70
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Solution
The fourth proportional to 765,802,847.32, 1,149,038,392.68 and 268,170,528.70 is: 402,372,796.52
Step by Step Solution
- Step 1: Write the proportion equation
765,802,847.32 : 1,149,038,392.68 = 268,170,528.70 : x - Step 2: Convert to fraction form
765,802,847.32/1,149,038,392.68 = 268,170,528.70/x - Step 3: Cross multiply
765,802,847.32x = 1,149,038,392.68 × 268,170,528.70 - Step 4: Simplify right side
765,802,847.32x = 308,138,233,261,593,792 - Step 5: Solve for x
x = 308,138,233,261,593,792/765,802,847.32 - Step 6: Final answer
x = 402,372,796.52
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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.