Finding the Fourth Proportional to 3,120,485.10, 4,671,396.45 and 2,935,934.70
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Solution
The fourth proportional to 3,120,485.10, 4,671,396.45 and 2,935,934.70 is: 4,395,122.71
Step by Step Solution
- Step 1: Write the proportion equation
3,120,485.10 : 4,671,396.45 = 2,935,934.70 : x - Step 2: Convert to fraction form
3,120,485.10/4,671,396.45 = 2,935,934.70/x - Step 3: Cross multiply
3,120,485.10x = 4,671,396.45 × 2,935,934.70 - Step 4: Simplify right side
3,120,485.10x = 13,714,914,935,011.82 - Step 5: Solve for x
x = 13,714,914,935,011.82/3,120,485.10 - Step 6: Final answer
x = 4,395,122.71
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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.