Finding the Fourth Proportional to 18,837,473.40, 28,258,283.70 and 6,872,801.40
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Solution
The fourth proportional to 18,837,473.40, 28,258,283.70 and 6,872,801.40 is: 10,309,958.65
Step by Step Solution
- Step 1: Write the proportion equation
18,837,473.40 : 28,258,283.70 = 6,872,801.40 : x - Step 2: Convert to fraction form
18,837,473.40/28,258,283.70 = 6,872,801.40/x - Step 3: Cross multiply
18,837,473.40x = 28,258,283.70 × 6,872,801.40 - Step 4: Simplify right side
18,837,473.40x = 194,213,571,774,957.19 - Step 5: Solve for x
x = 194,213,571,774,957.19/18,837,473.40 - Step 6: Final answer
x = 10,309,958.65
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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.