Finding the Fourth Proportional to 18,713,701.80, 28,028,562.30 and 15,354,469.80
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Solution
The fourth proportional to 18,713,701.80, 28,028,562.30 and 15,354,469.80 is: 22,997,251.85
Step by Step Solution
- Step 1: Write the proportion equation
18,713,701.80 : 28,028,562.30 = 15,354,469.80 : x - Step 2: Convert to fraction form
18,713,701.80/28,028,562.30 = 15,354,469.80/x - Step 3: Cross multiply
18,713,701.80x = 28,028,562.30 × 15,354,469.80 - Step 4: Simplify right side
18,713,701.80x = 430,363,713,372,768.56 - Step 5: Solve for x
x = 430,363,713,372,768.56/18,713,701.80 - Step 6: Final answer
x = 22,997,251.85
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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.