Finding the Fourth Proportional to 18,437,746.80, 27,656,620.20 and 8,871,808.80
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Solution
The fourth proportional to 18,437,746.80, 27,656,620.20 and 8,871,808.80 is: 13,307,713.20
Step by Step Solution
- Step 1: Write the proportion equation
18,437,746.80 : 27,656,620.20 = 8,871,808.80 : x - Step 2: Convert to fraction form
18,437,746.80/27,656,620.20 = 8,871,808.80/x - Step 3: Cross multiply
18,437,746.80x = 27,656,620.20 × 8,871,808.80 - Step 4: Simplify right side
18,437,746.80x = 245,364,246,468,617.78 - Step 5: Solve for x
x = 245,364,246,468,617.78/18,437,746.80 - Step 6: Final answer
x = 13,307,713.20
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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.