Finding the Fourth Proportional to 28,135,338.12, 42,202,219.86 and 8,967,245.40
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Solution
The fourth proportional to 28,135,338.12, 42,202,219.86 and 8,967,245.40 is: 13,450,617.17
Step by Step Solution
- Step 1: Write the proportion equation
28,135,338.12 : 42,202,219.86 = 8,967,245.40 : x - Step 2: Convert to fraction form
28,135,338.12/42,202,219.86 = 8,967,245.40/x - Step 3: Cross multiply
28,135,338.12x = 42,202,219.86 × 8,967,245.40 - Step 4: Simplify right side
28,135,338.12x = 378,437,661,909,373.62 - Step 5: Solve for x
x = 378,437,661,909,373.62/28,135,338.12 - Step 6: Final answer
x = 13,450,617.17
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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.