Finding the Fourth Proportional to 498,326,519.70, 747,489,779.55 and 265,874,226.30
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Solution
The fourth proportional to 498,326,519.70, 747,489,779.55 and 265,874,226.30 is: 398,811,339.45
Step by Step Solution
- Step 1: Write the proportion equation
498,326,519.70 : 747,489,779.55 = 265,874,226.30 : x - Step 2: Convert to fraction form
498,326,519.70/747,489,779.55 = 265,874,226.30/x - Step 3: Cross multiply
498,326,519.70x = 747,489,779.55 × 265,874,226.30 - Step 4: Simplify right side
498,326,519.70x = 198,738,266,805,013,824 - Step 5: Solve for x
x = 198,738,266,805,013,824/498,326,519.70 - Step 6: Final answer
x = 398,811,339.45
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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.