Finding the Fourth Proportional to 7,862,853.26, 10,854,085.58 and 5,286,028.71
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Solution
The fourth proportional to 7,862,853.26, 10,854,085.58 and 5,286,028.71 is: 7,296,970.46
Step by Step Solution
- Step 1: Write the proportion equation
7,862,853.26 : 10,854,085.58 = 5,286,028.71 : x - Step 2: Convert to fraction form
7,862,853.26/10,854,085.58 = 5,286,028.71/x - Step 3: Cross multiply
7,862,853.26x = 10,854,085.58 × 5,286,028.71 - Step 4: Simplify right side
7,862,853.26x = 57,375,007,970,246.85 - Step 5: Solve for x
x = 57,375,007,970,246.85/7,862,853.26 - Step 6: Final answer
x = 7,296,970.46
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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.