Finding the Fourth Proportional to 2,188,733.02, 3,020,139.09 and 1,221,842.08
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Solution
The fourth proportional to 2,188,733.02, 3,020,139.09 and 1,221,842.08 is: 1,685,967.63
Step by Step Solution
- Step 1: Write the proportion equation
2,188,733.02 : 3,020,139.09 = 1,221,842.08 : x - Step 2: Convert to fraction form
2,188,733.02/3,020,139.09 = 1,221,842.08/x - Step 3: Cross multiply
2,188,733.02x = 3,020,139.09 × 1,221,842.08 - Step 4: Simplify right side
2,188,733.02x = 3,690,133,027,614.91 - Step 5: Solve for x
x = 3,690,133,027,614.91/2,188,733.02 - Step 6: Final answer
x = 1,685,967.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.