Finding the Fourth Proportional to 13,258,244.40, 19,888,207.20 and 4,160,700.72
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Solution
The fourth proportional to 13,258,244.40, 19,888,207.20 and 4,160,700.72 is: 6,241,314.88
Step by Step Solution
- Step 1: Write the proportion equation
13,258,244.40 : 19,888,207.20 = 4,160,700.72 : x - Step 2: Convert to fraction form
13,258,244.40/19,888,207.20 = 4,160,700.72/x - Step 3: Cross multiply
13,258,244.40x = 19,888,207.20 × 4,160,700.72 - Step 4: Simplify right side
13,258,244.40x = 82,748,878,016,549.19 - Step 5: Solve for x
x = 82,748,878,016,549.19/13,258,244.40 - Step 6: Final answer
x = 6,241,314.88
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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.