Finding the Fourth Proportional to 13,233,772.80, 19,854,115.20 and 4,258,540.80
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Solution
The fourth proportional to 13,233,772.80, 19,854,115.20 and 4,258,540.80 is: 6,388,923.32
Step by Step Solution
- Step 1: Write the proportion equation
13,233,772.80 : 19,854,115.20 = 4,258,540.80 : x - Step 2: Convert to fraction form
13,233,772.80/19,854,115.20 = 4,258,540.80/x - Step 3: Cross multiply
13,233,772.80x = 19,854,115.20 × 4,258,540.80 - Step 4: Simplify right side
13,233,772.80x = 84,549,559,627,100.16 - Step 5: Solve for x
x = 84,549,559,627,100.16/13,233,772.80 - Step 6: Final answer
x = 6,388,923.32
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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.