Finding the Fourth Proportional to 19,722,476.97, 27,216,958.64 and 11,020,657.91
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Solution
The fourth proportional to 19,722,476.97, 27,216,958.64 and 11,020,657.91 is: 15,208,474.61
Step by Step Solution
- Step 1: Write the proportion equation
19,722,476.97 : 27,216,958.64 = 11,020,657.91 : x - Step 2: Convert to fraction form
19,722,476.97/27,216,958.64 = 11,020,657.91/x - Step 3: Cross multiply
19,722,476.97x = 27,216,958.64 × 11,020,657.91 - Step 4: Simplify right side
19,722,476.97x = 299,948,790,330,870.75 - Step 5: Solve for x
x = 299,948,790,330,870.75/19,722,476.97 - Step 6: Final answer
x = 15,208,474.61
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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.