Finding the Fourth Proportional to 438,101,806.56, 604,556,541.24 and 239,824,943.87
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Solution
The fourth proportional to 438,101,806.56, 604,556,541.24 and 239,824,943.87 is: 330,945,310.87
Step by Step Solution
- Step 1: Write the proportion equation
438,101,806.56 : 604,556,541.24 = 239,824,943.87 : x - Step 2: Convert to fraction form
438,101,806.56/604,556,541.24 = 239,824,943.87/x - Step 3: Cross multiply
438,101,806.56x = 604,556,541.24 × 239,824,943.87 - Step 4: Simplify right side
438,101,806.56x = 144,987,738,566,101,568 - Step 5: Solve for x
x = 144,987,738,566,101,568/438,101,806.56 - Step 6: Final answer
x = 330,945,310.87
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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.