Finding the Fourth Proportional to 278,391,340.26, 384,129,393.39 and 160,873,595.10
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Solution
The fourth proportional to 278,391,340.26, 384,129,393.39 and 160,873,595.10 is: 221,976,288.63
Step by Step Solution
- Step 1: Write the proportion equation
278,391,340.26 : 384,129,393.39 = 160,873,595.10 : x - Step 2: Convert to fraction form
278,391,340.26/384,129,393.39 = 160,873,595.10/x - Step 3: Cross multiply
278,391,340.26x = 384,129,393.39 × 160,873,595.10 - Step 4: Simplify right side
278,391,340.26x = 61,796,276,498,231,472 - Step 5: Solve for x
x = 61,796,276,498,231,472/278,391,340.26 - Step 6: Final answer
x = 221,976,288.63
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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.