Finding the Fourth Proportional to 313,301,892.31, 432,368,279.66 and 187,874,508.99
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Solution
The fourth proportional to 313,301,892.31, 432,368,279.66 and 187,874,508.99 is: 259,273,819.40
Step by Step Solution
- Step 1: Write the proportion equation
313,301,892.31 : 432,368,279.66 = 187,874,508.99 : x - Step 2: Convert to fraction form
313,301,892.31/432,368,279.66 = 187,874,508.99/x - Step 3: Cross multiply
313,301,892.31x = 432,368,279.66 × 187,874,508.99 - Step 4: Simplify right side
313,301,892.31x = 81,230,978,243,973,520 - Step 5: Solve for x
x = 81,230,978,243,973,520/313,301,892.31 - Step 6: Final answer
x = 259,273,819.40
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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.