Finding the Fourth Proportional to 11,654,291.36, 16,077,205.68 and 7,787,761.76
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Solution
The fourth proportional to 11,654,291.36, 16,077,205.68 and 7,787,761.76 is: 10,743,291.35
Step by Step Solution
- Step 1: Write the proportion equation
11,654,291.36 : 16,077,205.68 = 7,787,761.76 : x - Step 2: Convert to fraction form
11,654,291.36/16,077,205.68 = 7,787,761.76/x - Step 3: Cross multiply
11,654,291.36x = 16,077,205.68 × 7,787,761.76 - Step 4: Simplify right side
11,654,291.36x = 125,205,447,602,358.80 - Step 5: Solve for x
x = 125,205,447,602,358.80/11,654,291.36 - Step 6: Final answer
x = 10,743,291.35
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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.