Finding the Fourth Proportional to 8,047,972.36, 11,135,444.85 and 7,017,628.84
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Solution
The fourth proportional to 8,047,972.36, 11,135,444.85 and 7,017,628.84 is: 9,709,826.95
Step by Step Solution
- Step 1: Write the proportion equation
8,047,972.36 : 11,135,444.85 = 7,017,628.84 : x - Step 2: Convert to fraction form
8,047,972.36/11,135,444.85 = 7,017,628.84/x - Step 3: Cross multiply
8,047,972.36x = 11,135,444.85 × 7,017,628.84 - Step 4: Simplify right side
8,047,972.36x = 78,144,418,897,750.86 - Step 5: Solve for x
x = 78,144,418,897,750.86/8,047,972.36 - Step 6: Final answer
x = 9,709,826.95
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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.