Finding the Fourth Proportional to 71,521,810.33, 107,263,507.80 and 19,694,073.82
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Solution
The fourth proportional to 71,521,810.33, 107,263,507.80 and 19,694,073.82 is: 29,535,821.75
Step by Step Solution
- Step 1: Write the proportion equation
71,521,810.33 : 107,263,507.80 = 19,694,073.82 : x - Step 2: Convert to fraction form
71,521,810.33/107,263,507.80 = 19,694,073.82/x - Step 3: Cross multiply
71,521,810.33x = 107,263,507.80 × 19,694,073.82 - Step 4: Simplify right side
71,521,810.33x = 2,112,455,440,805,345.75 - Step 5: Solve for x
x = 2,112,455,440,805,345.75/71,521,810.33 - Step 6: Final answer
x = 29,535,821.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.