Finding the Fourth Proportional to 3,386,887.67, 4,673,903.18 and 1,916,769.53
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Solution
The fourth proportional to 3,386,887.67, 4,673,903.18 and 1,916,769.53 is: 2,645,140.92
Step by Step Solution
- Step 1: Write the proportion equation
3,386,887.67 : 4,673,903.18 = 1,916,769.53 : x - Step 2: Convert to fraction form
3,386,887.67/4,673,903.18 = 1,916,769.53/x - Step 3: Cross multiply
3,386,887.67x = 4,673,903.18 × 1,916,769.53 - Step 4: Simplify right side
3,386,887.67x = 8,958,795,168,640.74 - Step 5: Solve for x
x = 8,958,795,168,640.74/3,386,887.67 - Step 6: Final answer
x = 2,645,140.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.