Finding the Fourth Proportional to 28,585,496.74, 39,448,235.40 and 15,532,755.60
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Solution
The fourth proportional to 28,585,496.74, 39,448,235.40 and 15,532,755.60 is: 21,435,338.52
Step by Step Solution
- Step 1: Write the proportion equation
28,585,496.74 : 39,448,235.40 = 15,532,755.60 : x - Step 2: Convert to fraction form
28,585,496.74/39,448,235.40 = 15,532,755.60/x - Step 3: Cross multiply
28,585,496.74x = 39,448,235.40 × 15,532,755.60 - Step 4: Simplify right side
28,585,496.74x = 612,739,799,319,468.25 - Step 5: Solve for x
x = 612,739,799,319,468.25/28,585,496.74 - Step 6: Final answer
x = 21,435,338.52
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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.