Finding the Fourth Proportional to 18,472,002.40, 27,708,637.20 and 5,692,405.60
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Solution
The fourth proportional to 18,472,002.40, 27,708,637.20 and 5,692,405.60 is: 8,538,803.65
Step by Step Solution
- Step 1: Write the proportion equation
18,472,002.40 : 27,708,637.20 = 5,692,405.60 : x - Step 2: Convert to fraction form
18,472,002.40/27,708,637.20 = 5,692,405.60/x - Step 3: Cross multiply
18,472,002.40x = 27,708,637.20 × 5,692,405.60 - Step 4: Simplify right side
18,472,002.40x = 157,728,801,565,648.31 - Step 5: Solve for x
x = 157,728,801,565,648.31/18,472,002.40 - Step 6: Final answer
x = 8,538,803.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.