Finding the Fourth Proportional to 4,912,858.47, 6,779,771.58 and 2,849,097.65
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Solution
The fourth proportional to 4,912,858.47, 6,779,771.58 and 2,849,097.65 is: 3,931,770.34
Step by Step Solution
- Step 1: Write the proportion equation
4,912,858.47 : 6,779,771.58 = 2,849,097.65 : x - Step 2: Convert to fraction form
4,912,858.47/6,779,771.58 = 2,849,097.65/x - Step 3: Cross multiply
4,912,858.47x = 6,779,771.58 × 2,849,097.65 - Step 4: Simplify right side
4,912,858.47x = 19,316,231,244,886.96 - Step 5: Solve for x
x = 19,316,231,244,886.96/4,912,858.47 - Step 6: Final answer
x = 3,931,770.34
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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.