Finding the Fourth Proportional to 53,028,989.58, 79,543,484.64 and 16,642,995.78
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Solution
The fourth proportional to 53,028,989.58, 79,543,484.64 and 16,642,995.78 is: 24,964,493.75
Step by Step Solution
- Step 1: Write the proportion equation
53,028,989.58 : 79,543,484.64 = 16,642,995.78 : x - Step 2: Convert to fraction form
53,028,989.58/79,543,484.64 = 16,642,995.78/x - Step 3: Cross multiply
53,028,989.58x = 79,543,484.64 × 16,642,995.78 - Step 4: Simplify right side
53,028,989.58x = 1,323,841,879,190,014.75 - Step 5: Solve for x
x = 1,323,841,879,190,014.75/53,028,989.58 - Step 6: Final answer
x = 24,964,493.75
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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.