Finding the Fourth Proportional to 18,455,977.20, 27,683,965.80 and 18,455,977.20
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Solution
The fourth proportional to 18,455,977.20, 27,683,965.80 and 18,455,977.20 is: 27,683,965.80
Step by Step Solution
- Step 1: Write the proportion equation
18,455,977.20 : 27,683,965.80 = 18,455,977.20 : x - Step 2: Convert to fraction form
18,455,977.20/27,683,965.80 = 18,455,977.20/x - Step 3: Cross multiply
18,455,977.20x = 27,683,965.80 × 18,455,977.20 - Step 4: Simplify right side
18,455,977.20x = 510,934,641,610,379.75 - Step 5: Solve for x
x = 510,934,641,610,379.75/18,455,977.20 - Step 6: Final answer
x = 27,683,965.80
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1.5x scale
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.