Finding the Fourth Proportional to 280,410,837.39, 420,240,272.87 and 218,237,222.65
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Solution
The fourth proportional to 280,410,837.39, 420,240,272.87 and 218,237,222.65 is: 327,063,214.99
Step by Step Solution
- Step 1: Write the proportion equation
280,410,837.39 : 420,240,272.87 = 218,237,222.65 : x - Step 2: Convert to fraction form
280,410,837.39/420,240,272.87 = 218,237,222.65/x - Step 3: Cross multiply
280,410,837.39x = 420,240,272.87 × 218,237,222.65 - Step 4: Simplify right side
280,410,837.39x = 91,712,069,995,876,768 - Step 5: Solve for x
x = 91,712,069,995,876,768/280,410,837.39 - Step 6: Final answer
x = 327,063,214.99
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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.