Finding the Fourth Proportional to 286,944,128.40, 430,416,192.60 and 264,773,197.20
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Solution
The fourth proportional to 286,944,128.40, 430,416,192.60 and 264,773,197.20 is: 397,159,795.80
Step by Step Solution
- Step 1: Write the proportion equation
286,944,128.40 : 430,416,192.60 = 264,773,197.20 : x - Step 2: Convert to fraction form
286,944,128.40/430,416,192.60 = 264,773,197.20/x - Step 3: Cross multiply
286,944,128.40x = 430,416,192.60 × 264,773,197.20 - Step 4: Simplify right side
286,944,128.40x = 113,962,671,441,352,976 - Step 5: Solve for x
x = 113,962,671,441,352,976/286,944,128.40 - Step 6: Final answer
x = 397,159,795.80
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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.