Finding the Fourth Proportional to 138,366,691.47, 190,948,304.00 and 82,616,983.07
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Solution
The fourth proportional to 138,366,691.47, 190,948,304.00 and 82,616,983.07 is: 114,012,791.88
Step by Step Solution
- Step 1: Write the proportion equation
138,366,691.47 : 190,948,304.00 = 82,616,983.07 : x - Step 2: Convert to fraction form
138,366,691.47/190,948,304.00 = 82,616,983.07/x - Step 3: Cross multiply
138,366,691.47x = 190,948,304.00 × 82,616,983.07 - Step 4: Simplify right side
138,366,691.47x = 15,775,572,798,065,014 - Step 5: Solve for x
x = 15,775,572,798,065,014/138,366,691.47 - Step 6: Final answer
x = 114,012,791.88
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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.