Finding the Fourth Proportional to 234,178,415.44, 323,166,593.12 and 128,315,008.36
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Solution
The fourth proportional to 234,178,415.44, 323,166,593.12 and 128,315,008.36 is: 177,074,919.65
Step by Step Solution
- Step 1: Write the proportion equation
234,178,415.44 : 323,166,593.12 = 128,315,008.36 : x - Step 2: Convert to fraction form
234,178,415.44/323,166,593.12 = 128,315,008.36/x - Step 3: Cross multiply
234,178,415.44x = 323,166,593.12 × 128,315,008.36 - Step 4: Simplify right side
234,178,415.44x = 41,467,124,097,865,520 - Step 5: Solve for x
x = 41,467,124,097,865,520/234,178,415.44 - Step 6: Final answer
x = 177,074,919.65
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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.