Finding the Fourth Proportional to 387,117,051.20, 580,675,576.80 and 351,285,243.20
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Solution
The fourth proportional to 387,117,051.20, 580,675,576.80 and 351,285,243.20 is: 526,927,864.80
Step by Step Solution
- Step 1: Write the proportion equation
387,117,051.20 : 580,675,576.80 = 351,285,243.20 : x - Step 2: Convert to fraction form
387,117,051.20/580,675,576.80 = 351,285,243.20/x - Step 3: Cross multiply
387,117,051.20x = 580,675,576.80 × 351,285,243.20 - Step 4: Simplify right side
387,117,051.20x = 203,982,761,216,488,256 - Step 5: Solve for x
x = 203,982,761,216,488,256/387,117,051.20 - Step 6: Final answer
x = 526,927,864.80
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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.