Finding the Fourth Proportional to 498,205,007.80, 747,307,511.70 and 221,855,687.80
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Solution
The fourth proportional to 498,205,007.80, 747,307,511.70 and 221,855,687.80 is: 332,783,531.70
Step by Step Solution
- Step 1: Write the proportion equation
498,205,007.80 : 747,307,511.70 = 221,855,687.80 : x - Step 2: Convert to fraction form
498,205,007.80/747,307,511.70 = 221,855,687.80/x - Step 3: Cross multiply
498,205,007.80x = 747,307,511.70 × 221,855,687.80 - Step 4: Simplify right side
498,205,007.80x = 165,794,422,006,310,080 - Step 5: Solve for x
x = 165,794,422,006,310,080/498,205,007.80 - Step 6: Final answer
x = 332,783,531.70
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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.