Finding the Fourth Proportional to 28,448,113.88, 39,258,466.73 and 15,395,467.60
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Solution
The fourth proportional to 28,448,113.88, 39,258,466.73 and 15,395,467.60 is: 21,245,782.94
Step by Step Solution
- Step 1: Write the proportion equation
28,448,113.88 : 39,258,466.73 = 15,395,467.60 : x - Step 2: Convert to fraction form
28,448,113.88/39,258,466.73 = 15,395,467.60/x - Step 3: Cross multiply
28,448,113.88x = 39,258,466.73 × 15,395,467.60 - Step 4: Simplify right side
28,448,113.88x = 604,402,452,597,221.62 - Step 5: Solve for x
x = 604,402,452,597,221.62/28,448,113.88 - Step 6: Final answer
x = 21,245,782.94
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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.