Finding the Fourth Proportional to 4,991,367.42, 6,888,402 and 2,815,116.54
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Solution
The fourth proportional to 4,991,367.42, 6,888,402 and 2,815,116.54 is: 3,885,038.46
Step by Step Solution
- Step 1: Write the proportion equation
4,991,367.42 : 6,888,402 = 2,815,116.54 : x - Step 2: Convert to fraction form
4,991,367.42/6,888,402 = 2,815,116.54/x - Step 3: Cross multiply
4,991,367.42x = 6,888,402 × 2,815,116.54 - Step 4: Simplify right side
4,991,367.42x = 19,391,654,404,369.08 - Step 5: Solve for x
x = 19,391,654,404,369.08/4,991,367.42 - Step 6: Final answer
x = 3,885,038.46
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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.