Finding the Fourth Proportional to 15,165,360.06, 20,923,086.88 and 8,634,368.53
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Solution
The fourth proportional to 15,165,360.06, 20,923,086.88 and 8,634,368.53 is: 11,912,519.20
Step by Step Solution
- Step 1: Write the proportion equation
15,165,360.06 : 20,923,086.88 = 8,634,368.53 : x - Step 2: Convert to fraction form
15,165,360.06/20,923,086.88 = 8,634,368.53/x - Step 3: Cross multiply
15,165,360.06x = 20,923,086.88 × 8,634,368.53 - Step 4: Simplify right side
15,165,360.06x = 180,657,642,907,127.88 - Step 5: Solve for x
x = 180,657,642,907,127.88/15,165,360.06 - Step 6: Final answer
x = 11,912,519.20
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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.