Finding the Fourth Proportional to 2,930,381.07, 4,042,637.71 and 1,768,179.09
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Solution
The fourth proportional to 2,930,381.07, 4,042,637.71 and 1,768,179.09 is: 2,439,309.88
Step by Step Solution
- Step 1: Write the proportion equation
2,930,381.07 : 4,042,637.71 = 1,768,179.09 : x - Step 2: Convert to fraction form
2,930,381.07/4,042,637.71 = 1,768,179.09/x - Step 3: Cross multiply
2,930,381.07x = 4,042,637.71 × 1,768,179.09 - Step 4: Simplify right side
2,930,381.07x = 7,148,107,478,006.93 - Step 5: Solve for x
x = 7,148,107,478,006.93/2,930,381.07 - Step 6: Final answer
x = 2,439,309.88
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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.