Finding the Fourth Proportional to 19,906,870.46, 27,468,211.74 and 11,531,261.84
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Solution
The fourth proportional to 19,906,870.46, 27,468,211.74 and 11,531,261.84 is: 15,911,247.45
Step by Step Solution
- Step 1: Write the proportion equation
19,906,870.46 : 27,468,211.74 = 11,531,261.84 : x - Step 2: Convert to fraction form
19,906,870.46/27,468,211.74 = 11,531,261.84/x - Step 3: Cross multiply
19,906,870.46x = 27,468,211.74 × 11,531,261.84 - Step 4: Simplify right side
19,906,870.46x = 316,743,141,850,502 - Step 5: Solve for x
x = 316,743,141,850,502/19,906,870.46 - Step 6: Final answer
x = 15,911,247.45
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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.