Finding the Fourth Proportional to 234,178,419.87, 323,166,599.24 and 128,315,012.79
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Solution
The fourth proportional to 234,178,419.87, 323,166,599.24 and 128,315,012.79 is: 177,074,925.77
Step by Step Solution
- Step 1: Write the proportion equation
234,178,419.87 : 323,166,599.24 = 128,315,012.79 : x - Step 2: Convert to fraction form
234,178,419.87/323,166,599.24 = 128,315,012.79/x - Step 3: Cross multiply
234,178,419.87x = 323,166,599.24 × 128,315,012.79 - Step 4: Simplify right side
234,178,419.87x = 41,467,126,315,351,704 - Step 5: Solve for x
x = 41,467,126,315,351,704/234,178,419.87 - Step 6: Final answer
x = 177,074,925.77
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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.