Finding the Fourth Proportional to 178,780,390.84, 268,060,833.30 and 69,477,935.80
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Solution
The fourth proportional to 178,780,390.84, 268,060,833.30 and 69,477,935.80 is: 104,174,251.32
Step by Step Solution
- Step 1: Write the proportion equation
178,780,390.84 : 268,060,833.30 = 69,477,935.80 : x - Step 2: Convert to fraction form
178,780,390.84/268,060,833.30 = 69,477,935.80/x - Step 3: Cross multiply
178,780,390.84x = 268,060,833.30 × 69,477,935.80 - Step 4: Simplify right side
178,780,390.84x = 18,624,313,366,511,904 - Step 5: Solve for x
x = 18,624,313,366,511,904/178,780,390.84 - Step 6: Final answer
x = 104,174,251.32
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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.