Finding the Fourth Proportional to 5,638,378.12, 8,455,671.70 and 2,043,392.36
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Solution
The fourth proportional to 5,638,378.12, 8,455,671.70 and 2,043,392.36 is: 3,064,401.60
Step by Step Solution
- Step 1: Write the proportion equation
5,638,378.12 : 8,455,671.70 = 2,043,392.36 : x - Step 2: Convert to fraction form
5,638,378.12/8,455,671.70 = 2,043,392.36/x - Step 3: Cross multiply
5,638,378.12x = 8,455,671.70 × 2,043,392.36 - Step 4: Simplify right side
5,638,378.12x = 17,278,254,950,448.21 - Step 5: Solve for x
x = 17,278,254,950,448.21/5,638,378.12 - Step 6: Final answer
x = 3,064,401.60
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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.