Finding the Fourth Proportional to 6,461,878.46, 8,918,715.54 and 3,849,912.65
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Solution
The fourth proportional to 6,461,878.46, 8,918,715.54 and 3,849,912.65 is: 5,313,667.84
Step by Step Solution
- Step 1: Write the proportion equation
6,461,878.46 : 8,918,715.54 = 3,849,912.65 : x - Step 2: Convert to fraction form
6,461,878.46/8,918,715.54 = 3,849,912.65/x - Step 3: Cross multiply
6,461,878.46x = 8,918,715.54 × 3,849,912.65 - Step 4: Simplify right side
6,461,878.46x = 34,336,275,779,197.58 - Step 5: Solve for x
x = 34,336,275,779,197.58/6,461,878.46 - Step 6: Final answer
x = 5,313,667.84
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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.