Finding the Fourth Proportional to 12,805,292.88, 19,207,972.12 and 5,232,258.60
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Solution
The fourth proportional to 12,805,292.88, 19,207,972.12 and 5,232,258.60 is: 7,848,401.30
Step by Step Solution
- Step 1: Write the proportion equation
12,805,292.88 : 19,207,972.12 = 5,232,258.60 : x - Step 2: Convert to fraction form
12,805,292.88/19,207,972.12 = 5,232,258.60/x - Step 3: Cross multiply
12,805,292.88x = 19,207,972.12 × 5,232,258.60 - Step 4: Simplify right side
12,805,292.88x = 100,501,077,313,430.23 - Step 5: Solve for x
x = 100,501,077,313,430.23/12,805,292.88 - Step 6: Final answer
x = 7,848,401.30
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1.5x scale
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.