Finding the Fourth Proportional to 17,640,346.40, 26,458,964.40 and 4,859,712.80
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Solution
The fourth proportional to 17,640,346.40, 26,458,964.40 and 4,859,712.80 is: 7,289,140.76
Step by Step Solution
- Step 1: Write the proportion equation
17,640,346.40 : 26,458,964.40 = 4,859,712.80 : x - Step 2: Convert to fraction form
17,640,346.40/26,458,964.40 = 4,859,712.80/x - Step 3: Cross multiply
17,640,346.40x = 26,458,964.40 × 4,859,712.80 - Step 4: Simplify right side
17,640,346.40x = 128,582,967,969,424.31 - Step 5: Solve for x
x = 128,582,967,969,424.31/17,640,346.40 - Step 6: Final answer
x = 7,289,140.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.