Finding the Fourth Proportional to 4,345,903.80, 6,518,855.70 and 2,106,415.80
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Solution
The fourth proportional to 4,345,903.80, 6,518,855.70 and 2,106,415.80 is: 3,159,623.70
Step by Step Solution
- Step 1: Write the proportion equation
4,345,903.80 : 6,518,855.70 = 2,106,415.80 : x - Step 2: Convert to fraction form
4,345,903.80/6,518,855.70 = 2,106,415.80/x - Step 3: Cross multiply
4,345,903.80x = 6,518,855.70 × 2,106,415.80 - Step 4: Simplify right side
4,345,903.80x = 13,731,420,644,400.06 - Step 5: Solve for x
x = 13,731,420,644,400.06/4,345,903.80 - Step 6: Final answer
x = 3,159,623.70
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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.