Finding the Fourth Proportional to 389,382,320.88, 537,346,761.84 and 213,168,888
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Solution
The fourth proportional to 389,382,320.88, 537,346,761.84 and 213,168,888 is: 294,172,605.05
Step by Step Solution
- Step 1: Write the proportion equation
389,382,320.88 : 537,346,761.84 = 213,168,888 : x - Step 2: Convert to fraction form
389,382,320.88/537,346,761.84 = 213,168,888/x - Step 3: Cross multiply
389,382,320.88x = 537,346,761.84 × 213,168,888 - Step 4: Simplify right side
389,382,320.88x = 114,545,611,691,833,648 - Step 5: Solve for x
x = 114,545,611,691,833,648/389,382,320.88 - Step 6: Final answer
x = 294,172,605.05
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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.