Finding the Fourth Proportional to 7,121,535.84, 10,682,316.06 and 1,730,189.92
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Solution
The fourth proportional to 7,121,535.84, 10,682,316.06 and 1,730,189.92 is: 2,595,287.87
Step by Step Solution
- Step 1: Write the proportion equation
7,121,535.84 : 10,682,316.06 = 1,730,189.92 : x - Step 2: Convert to fraction form
7,121,535.84/10,682,316.06 = 1,730,189.92/x - Step 3: Cross multiply
7,121,535.84x = 10,682,316.06 × 1,730,189.92 - Step 4: Simplify right side
7,121,535.84x = 18,482,435,569,266.12 - Step 5: Solve for x
x = 18,482,435,569,266.12/7,121,535.84 - Step 6: Final answer
x = 2,595,287.87
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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.