Finding the Fourth Proportional to 126,801,000.90, 190,201,501.35 and 40,542,221.70
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Solution
The fourth proportional to 126,801,000.90, 190,201,501.35 and 40,542,221.70 is: 60,813,332.55
Step by Step Solution
- Step 1: Write the proportion equation
126,801,000.90 : 190,201,501.35 = 40,542,221.70 : x - Step 2: Convert to fraction form
126,801,000.90/190,201,501.35 = 40,542,221.70/x - Step 3: Cross multiply
126,801,000.90x = 190,201,501.35 × 40,542,221.70 - Step 4: Simplify right side
126,801,000.90x = 7,711,191,435,404,550 - Step 5: Solve for x
x = 7,711,191,435,404,550/126,801,000.90 - Step 6: Final answer
x = 60,813,332.55
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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.