Finding the Fourth Proportional to 77,122,183.80, 115,682,776.26 and 19,613,958
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Solution
The fourth proportional to 77,122,183.80, 115,682,776.26 and 19,613,958 is: 29,420,809.98
Step by Step Solution
- Step 1: Write the proportion equation
77,122,183.80 : 115,682,776.26 = 19,613,958 : x - Step 2: Convert to fraction form
77,122,183.80/115,682,776.26 = 19,613,958/x - Step 3: Cross multiply
77,122,183.80x = 115,682,776.26 × 19,613,958 - Step 4: Simplify right side
77,122,183.80x = 2,268,997,114,887,037 - Step 5: Solve for x
x = 2,268,997,114,887,037/77,122,183.80 - Step 6: Final answer
x = 29,420,809.98
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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.