Finding the Fourth Proportional to 2,346,386.72, 3,236,340.96 and 2,153,416.44
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Solution
The fourth proportional to 2,346,386.72, 3,236,340.96 and 2,153,416.44 is: 2,970,179.55
Step by Step Solution
- Step 1: Write the proportion equation
2,346,386.72 : 3,236,340.96 = 2,153,416.44 : x - Step 2: Convert to fraction form
2,346,386.72/3,236,340.96 = 2,153,416.44/x - Step 3: Cross multiply
2,346,386.72x = 3,236,340.96 × 2,153,416.44 - Step 4: Simplify right side
2,346,386.72x = 6,969,189,828,709.38 - Step 5: Solve for x
x = 6,969,189,828,709.38/2,346,386.72 - Step 6: Final answer
x = 2,970,179.55
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1.5x scale
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.