Finding the Fourth Proportional to 229,128,911.25, 316,197,879.99 and 124,707,731.28
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Solution
The fourth proportional to 229,128,911.25, 316,197,879.99 and 124,707,731.28 is: 172,096,659.62
Step by Step Solution
- Step 1: Write the proportion equation
229,128,911.25 : 316,197,879.99 = 124,707,731.28 : x - Step 2: Convert to fraction form
229,128,911.25/316,197,879.99 = 124,707,731.28/x - Step 3: Cross multiply
229,128,911.25x = 316,197,879.99 × 124,707,731.28 - Step 4: Simplify right side
229,128,911.25x = 39,432,320,249,098,608 - Step 5: Solve for x
x = 39,432,320,249,098,608/229,128,911.25 - Step 6: Final answer
x = 172,096,659.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.