Finding the Fourth Proportional to 7,676,426.57, 11,518,624.95 and 3,130,810.25
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Solution
The fourth proportional to 7,676,426.57, 11,518,624.95 and 3,130,810.25 is: 4,697,840.69
Step by Step Solution
- Step 1: Write the proportion equation
7,676,426.57 : 11,518,624.95 = 3,130,810.25 : x - Step 2: Convert to fraction form
7,676,426.57/11,518,624.95 = 3,130,810.25/x - Step 3: Cross multiply
7,676,426.57x = 11,518,624.95 × 3,130,810.25 - Step 4: Simplify right side
7,676,426.57x = 36,062,629,073,139.09 - Step 5: Solve for x
x = 36,062,629,073,139.09/7,676,426.57 - Step 6: Final answer
x = 4,697,840.69
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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.