Finding the Fourth Proportional to 73,766,490.80, 110,649,736.20 and 68,727,642.80
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Solution
The fourth proportional to 73,766,490.80, 110,649,736.20 and 68,727,642.80 is: 103,091,464.20
Step by Step Solution
- Step 1: Write the proportion equation
73,766,490.80 : 110,649,736.20 = 68,727,642.80 : x - Step 2: Convert to fraction form
73,766,490.80/110,649,736.20 = 68,727,642.80/x - Step 3: Cross multiply
73,766,490.80x = 110,649,736.20 × 68,727,642.80 - Step 4: Simplify right side
73,766,490.80x = 7,604,695,545,467,829 - Step 5: Solve for x
x = 7,604,695,545,467,829/73,766,490.80 - Step 6: Final answer
x = 103,091,464.20
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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.