Finding the Fourth Proportional to 9,026,879.40, 13,542,068.70 and 4,539,155.40
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Solution
The fourth proportional to 9,026,879.40, 13,542,068.70 and 4,539,155.40 is: 6,809,612.88
Step by Step Solution
- Step 1: Write the proportion equation
9,026,879.40 : 13,542,068.70 = 4,539,155.40 : x - Step 2: Convert to fraction form
9,026,879.40/13,542,068.70 = 4,539,155.40/x - Step 3: Cross multiply
9,026,879.40x = 13,542,068.70 × 4,539,155.40 - Step 4: Simplify right side
9,026,879.40x = 61,469,554,266,775.98 - Step 5: Solve for x
x = 61,469,554,266,775.98/9,026,879.40 - Step 6: Final answer
x = 6,809,612.88
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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.