Finding the Fourth Proportional to 90,201,703.20, 135,302,554.80 and 90,201,703.20
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Solution
The fourth proportional to 90,201,703.20, 135,302,554.80 and 90,201,703.20 is: 135,302,554.80
Step by Step Solution
- Step 1: Write the proportion equation
90,201,703.20 : 135,302,554.80 = 90,201,703.20 : x - Step 2: Convert to fraction form
90,201,703.20/135,302,554.80 = 90,201,703.20/x - Step 3: Cross multiply
90,201,703.20x = 135,302,554.80 × 90,201,703.20 - Step 4: Simplify right side
90,201,703.20x = 12,204,520,890,271,336 - Step 5: Solve for x
x = 12,204,520,890,271,336/90,201,703.20 - Step 6: Final answer
x = 135,302,554.80
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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.