Finding the Fourth Proportional to 134,944,447.20, 202,416,670.80 and 66,919,999.20
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Solution
The fourth proportional to 134,944,447.20, 202,416,670.80 and 66,919,999.20 is: 100,379,998.80
Step by Step Solution
- Step 1: Write the proportion equation
134,944,447.20 : 202,416,670.80 = 66,919,999.20 : x - Step 2: Convert to fraction form
134,944,447.20/202,416,670.80 = 66,919,999.20/x - Step 3: Cross multiply
134,944,447.20x = 202,416,670.80 × 66,919,999.20 - Step 4: Simplify right side
134,944,447.20x = 13,545,723,448,002,664 - Step 5: Solve for x
x = 13,545,723,448,002,664/134,944,447.20 - Step 6: Final answer
x = 100,379,998.80
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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.