Finding the Fourth Proportional to 7,211,945.60, 9,952,176.84 and 3,948,701.12
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Solution
The fourth proportional to 7,211,945.60, 9,952,176.84 and 3,948,701.12 is: 5,449,038.86
Step by Step Solution
- Step 1: Write the proportion equation
7,211,945.60 : 9,952,176.84 = 3,948,701.12 : x - Step 2: Convert to fraction form
7,211,945.60/9,952,176.84 = 3,948,701.12/x - Step 3: Cross multiply
7,211,945.60x = 9,952,176.84 × 3,948,701.12 - Step 4: Simplify right side
7,211,945.60x = 39,298,171,834,546.06 - Step 5: Solve for x
x = 39,298,171,834,546.06/7,211,945.60 - Step 6: Final answer
x = 5,449,038.86
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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.