Finding the Fourth Proportional to 53,939,716.90, 80,909,575.35 and 53,043,921.70
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Solution
The fourth proportional to 53,939,716.90, 80,909,575.35 and 53,043,921.70 is: 79,565,882.55
Step by Step Solution
- Step 1: Write the proportion equation
53,939,716.90 : 80,909,575.35 = 53,043,921.70 : x - Step 2: Convert to fraction form
53,939,716.90/80,909,575.35 = 53,043,921.70/x - Step 3: Cross multiply
53,939,716.90x = 80,909,575.35 × 53,043,921.70 - Step 4: Simplify right side
53,939,716.90x = 4,291,761,179,645,650 - Step 5: Solve for x
x = 4,291,761,179,645,650/53,939,716.90 - Step 6: Final answer
x = 79,565,882.55
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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.