Finding the Fourth Proportional to 5,428,060.68, 7,490,744.16 and 2,947,285.08
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Solution
The fourth proportional to 5,428,060.68, 7,490,744.16 and 2,947,285.08 is: 4,067,264.50
Step by Step Solution
- Step 1: Write the proportion equation
5,428,060.68 : 7,490,744.16 = 2,947,285.08 : x - Step 2: Convert to fraction form
5,428,060.68/7,490,744.16 = 2,947,285.08/x - Step 3: Cross multiply
5,428,060.68x = 7,490,744.16 × 2,947,285.08 - Step 4: Simplify right side
5,428,060.68x = 22,077,358,500,865.13 - Step 5: Solve for x
x = 22,077,358,500,865.13/5,428,060.68 - Step 6: Final answer
x = 4,067,264.50
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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.