Finding the Fourth Proportional to 28,355,905.26, 39,125,987.55 and 15,964,071.66
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Solution
The fourth proportional to 28,355,905.26, 39,125,987.55 and 15,964,071.66 is: 22,027,512.90
Step by Step Solution
- Step 1: Write the proportion equation
28,355,905.26 : 39,125,987.55 = 15,964,071.66 : x - Step 2: Convert to fraction form
28,355,905.26/39,125,987.55 = 15,964,071.66/x - Step 3: Cross multiply
28,355,905.26x = 39,125,987.55 × 15,964,071.66 - Step 4: Simplify right side
28,355,905.26x = 624,610,069,016,467.75 - Step 5: Solve for x
x = 624,610,069,016,467.75/28,355,905.26 - Step 6: Final answer
x = 22,027,512.90
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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.