Finding the Fourth Proportional to 79,811,646.44, 110,170,021.74 and 52,311,346.16
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Solution
The fourth proportional to 79,811,646.44, 110,170,021.74 and 52,311,346.16 is: 72,209,287.75
Step by Step Solution
- Step 1: Write the proportion equation
79,811,646.44 : 110,170,021.74 = 52,311,346.16 : x - Step 2: Convert to fraction form
79,811,646.44/110,170,021.74 = 52,311,346.16/x - Step 3: Cross multiply
79,811,646.44x = 110,170,021.74 × 52,311,346.16 - Step 4: Simplify right side
79,811,646.44x = 5,763,142,143,695,865 - Step 5: Solve for x
x = 5,763,142,143,695,865/79,811,646.44 - Step 6: Final answer
x = 72,209,287.75
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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.