Finding the Fourth Proportional to 712,124,502.44, 1,068,089,786.12 and 187,449,664.91
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Solution
The fourth proportional to 712,124,502.44, 1,068,089,786.12 and 187,449,664.91 is: 281,148,972.99
Step by Step Solution
- Step 1: Write the proportion equation
712,124,502.44 : 1,068,089,786.12 = 187,449,664.91 : x - Step 2: Convert to fraction form
712,124,502.44/1,068,089,786.12 = 187,449,664.91/x - Step 3: Cross multiply
712,124,502.44x = 1,068,089,786.12 × 187,449,664.91 - Step 4: Simplify right side
712,124,502.44x = 200,213,072,497,115,744 - Step 5: Solve for x
x = 200,213,072,497,115,744/712,124,502.44 - Step 6: Final answer
x = 281,148,972.99
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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.