Finding the Fourth Proportional to 351,706,804.38, 485,037,842.31 and 219,559,982.94
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Solution
The fourth proportional to 351,706,804.38, 485,037,842.31 and 219,559,982.94 is: 302,794,540.95
Step by Step Solution
- Step 1: Write the proportion equation
351,706,804.38 : 485,037,842.31 = 219,559,982.94 : x - Step 2: Convert to fraction form
351,706,804.38/485,037,842.31 = 219,559,982.94/x - Step 3: Cross multiply
351,706,804.38x = 485,037,842.31 × 219,559,982.94 - Step 4: Simplify right side
351,706,804.38x = 106,494,900,382,838,016 - Step 5: Solve for x
x = 106,494,900,382,838,016/351,706,804.38 - Step 6: Final answer
x = 302,794,540.95
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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.