Finding the Fourth Proportional to 35,630,076.80, 53,445,115.20 and 31,591,125.20
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Solution
The fourth proportional to 35,630,076.80, 53,445,115.20 and 31,591,125.20 is: 47,386,687.80
Step by Step Solution
- Step 1: Write the proportion equation
35,630,076.80 : 53,445,115.20 = 31,591,125.20 : x - Step 2: Convert to fraction form
35,630,076.80/53,445,115.20 = 31,591,125.20/x - Step 3: Cross multiply
35,630,076.80x = 53,445,115.20 × 31,591,125.20 - Step 4: Simplify right side
35,630,076.80x = 1,688,391,325,611,623 - Step 5: Solve for x
x = 1,688,391,325,611,623/35,630,076.80 - Step 6: Final answer
x = 47,386,687.80
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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.