Finding the Fourth Proportional to 5,115,301.21, 7,059,116.28 and 2,823,462.55
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Solution
The fourth proportional to 5,115,301.21, 7,059,116.28 and 2,823,462.55 is: 3,896,378.66
Step by Step Solution
- Step 1: Write the proportion equation
5,115,301.21 : 7,059,116.28 = 2,823,462.55 : x - Step 2: Convert to fraction form
5,115,301.21/7,059,116.28 = 2,823,462.55/x - Step 3: Cross multiply
5,115,301.21x = 7,059,116.28 × 2,823,462.55 - Step 4: Simplify right side
5,115,301.21x = 19,931,150,452,675.31 - Step 5: Solve for x
x = 19,931,150,452,675.31/5,115,301.21 - Step 6: Final answer
x = 3,896,378.66
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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.