Finding the Fourth Proportional to 153,230,121.97, 211,462,054.56 and 83,619,989.62
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Solution
The fourth proportional to 153,230,121.97, 211,462,054.56 and 83,619,989.62 is: 115,398,033.88
Step by Step Solution
- Step 1: Write the proportion equation
153,230,121.97 : 211,462,054.56 = 83,619,989.62 : x - Step 2: Convert to fraction form
153,230,121.97/211,462,054.56 = 83,619,989.62/x - Step 3: Cross multiply
153,230,121.97x = 211,462,054.56 × 83,619,989.62 - Step 4: Simplify right side
153,230,121.97x = 17,682,454,806,802,420 - Step 5: Solve for x
x = 17,682,454,806,802,420/153,230,121.97 - Step 6: Final answer
x = 115,398,033.88
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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.