Finding the Fourth Proportional to 21,122,274.56, 29,148,794.88 and 11,464,482.56
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Solution
The fourth proportional to 21,122,274.56, 29,148,794.88 and 11,464,482.56 is: 15,821,016.32
Step by Step Solution
- Step 1: Write the proportion equation
21,122,274.56 : 29,148,794.88 = 11,464,482.56 : x - Step 2: Convert to fraction form
21,122,274.56/29,148,794.88 = 11,464,482.56/x - Step 3: Cross multiply
21,122,274.56x = 29,148,794.88 × 11,464,482.56 - Step 4: Simplify right side
21,122,274.56x = 334,175,850,546,777.31 - Step 5: Solve for x
x = 334,175,850,546,777.31/21,122,274.56 - Step 6: Final answer
x = 15,821,016.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.