Finding the Fourth Proportional to 706,137,945.09, 974,445,837.17 and 388,568,515.65
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Solution
The fourth proportional to 706,137,945.09, 974,445,837.17 and 388,568,515.65 is: 536,211,055.02
Step by Step Solution
- Step 1: Write the proportion equation
706,137,945.09 : 974,445,837.17 = 388,568,515.65 : x - Step 2: Convert to fraction form
706,137,945.09/974,445,837.17 = 388,568,515.65/x - Step 3: Cross multiply
706,137,945.09x = 974,445,837.17 × 388,568,515.65 - Step 4: Simplify right side
706,137,945.09x = 378,638,972,528,525,632 - Step 5: Solve for x
x = 378,638,972,528,525,632/706,137,945.09 - Step 6: Final answer
x = 536,211,055.02
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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.