Finding the Fourth Proportional to 93,438,536.82, 128,941,278.28 and 53,743,049.48
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Solution
The fourth proportional to 93,438,536.82, 128,941,278.28 and 53,743,049.48 is: 74,163,163.66
Step by Step Solution
- Step 1: Write the proportion equation
93,438,536.82 : 128,941,278.28 = 53,743,049.48 : x - Step 2: Convert to fraction form
93,438,536.82/128,941,278.28 = 53,743,049.48/x - Step 3: Cross multiply
93,438,536.82x = 128,941,278.28 × 53,743,049.48 - Step 4: Simplify right side
93,438,536.82x = 6,929,697,498,616,489 - Step 5: Solve for x
x = 6,929,697,498,616,489/93,438,536.82 - Step 6: Final answer
x = 74,163,163.66
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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.