Finding the Fourth Proportional to 18,674,946.60, 27,928,439.10 and 15,651,637.80
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Solution
The fourth proportional to 18,674,946.60, 27,928,439.10 and 15,651,637.80 is: 23,407,071.65
Step by Step Solution
- Step 1: Write the proportion equation
18,674,946.60 : 27,928,439.10 = 15,651,637.80 : x - Step 2: Convert to fraction form
18,674,946.60/27,928,439.10 = 15,651,637.80/x - Step 3: Cross multiply
18,674,946.60x = 27,928,439.10 × 15,651,637.80 - Step 4: Simplify right side
18,674,946.60x = 437,125,813,112,558 - Step 5: Solve for x
x = 437,125,813,112,558/18,674,946.60 - Step 6: Final answer
x = 23,407,071.65
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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.