Finding the Fourth Proportional to 358,992,188.20, 538,913,435.10 and 203,669,698.60
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Solution
The fourth proportional to 358,992,188.20, 538,913,435.10 and 203,669,698.60 is: 305,745,752.99
Step by Step Solution
- Step 1: Write the proportion equation
358,992,188.20 : 538,913,435.10 = 203,669,698.60 : x - Step 2: Convert to fraction form
358,992,188.20/538,913,435.10 = 203,669,698.60/x - Step 3: Cross multiply
358,992,188.20x = 538,913,435.10 × 203,669,698.60 - Step 4: Simplify right side
358,992,188.20x = 109,760,336,898,307,664 - Step 5: Solve for x
x = 109,760,336,898,307,664/358,992,188.20 - Step 6: Final answer
x = 305,745,752.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.