Finding the Fourth Proportional to 256,018,879.00, 353,306,053.40 and 138,544,209.19
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Solution
The fourth proportional to 256,018,879.00, 353,306,053.40 and 138,544,209.19 is: 191,191,008.89
Step by Step Solution
- Step 1: Write the proportion equation
256,018,879.00 : 353,306,053.40 = 138,544,209.19 : x - Step 2: Convert to fraction form
256,018,879.00/353,306,053.40 = 138,544,209.19/x - Step 3: Cross multiply
256,018,879.00x = 353,306,053.40 × 138,544,209.19 - Step 4: Simplify right side
256,018,879.00x = 48,948,507,770,342,904 - Step 5: Solve for x
x = 48,948,507,770,342,904/256,018,879.00 - Step 6: Final answer
x = 191,191,008.89
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1.5x scale
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.