Finding the Fourth Proportional to 397,486,567.13, 548,535,521.92 and 218,887,063.80
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Solution
The fourth proportional to 397,486,567.13, 548,535,521.92 and 218,887,063.80 is: 302,066,383.40
Step by Step Solution
- Step 1: Write the proportion equation
397,486,567.13 : 548,535,521.92 = 218,887,063.80 : x - Step 2: Convert to fraction form
397,486,567.13/548,535,521.92 = 218,887,063.80/x - Step 3: Cross multiply
397,486,567.13x = 548,535,521.92 × 218,887,063.80 - Step 4: Simplify right side
397,486,567.13x = 120,067,329,781,422,976 - Step 5: Solve for x
x = 120,067,329,781,422,976/397,486,567.13 - Step 6: Final answer
x = 302,066,383.40
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.