Finding the Fourth Proportional to 197,540,317.80, 272,622,378.95 and 109,461,943.67
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Solution
The fourth proportional to 197,540,317.80, 272,622,378.95 and 109,461,943.67 is: 151,066,758.52
Step by Step Solution
- Step 1: Write the proportion equation
197,540,317.80 : 272,622,378.95 = 109,461,943.67 : x - Step 2: Convert to fraction form
197,540,317.80/272,622,378.95 = 109,461,943.67/x - Step 3: Cross multiply
197,540,317.80x = 272,622,378.95 × 109,461,943.67 - Step 4: Simplify right side
197,540,317.80x = 29,841,775,486,307,448 - Step 5: Solve for x
x = 29,841,775,486,307,448/197,540,317.80 - Step 6: Final answer
x = 151,066,758.52
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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.