Finding the Fourth Proportional to 130,391,489.70, 195,587,234.55 and 130,391,489.70
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Solution
The fourth proportional to 130,391,489.70, 195,587,234.55 and 130,391,489.70 is: 195,587,234.55
Step by Step Solution
- Step 1: Write the proportion equation
130,391,489.70 : 195,587,234.55 = 130,391,489.70 : x - Step 2: Convert to fraction form
130,391,489.70/195,587,234.55 = 130,391,489.70/x - Step 3: Cross multiply
130,391,489.70x = 195,587,234.55 × 130,391,489.70 - Step 4: Simplify right side
130,391,489.70x = 25,502,910,879,277,812 - Step 5: Solve for x
x = 25,502,910,879,277,812/130,391,489.70 - Step 6: Final answer
x = 195,587,234.55
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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.