Finding the Fourth Proportional to 6,421,134.12, 9,631,876.49 and 1,872,072.98
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Solution
The fourth proportional to 6,421,134.12, 9,631,876.49 and 1,872,072.98 is: 2,808,160.57
Step by Step Solution
- Step 1: Write the proportion equation
6,421,134.12 : 9,631,876.49 = 1,872,072.98 : x - Step 2: Convert to fraction form
6,421,134.12/9,631,876.49 = 1,872,072.98/x - Step 3: Cross multiply
6,421,134.12x = 9,631,876.49 × 1,872,072.98 - Step 4: Simplify right side
6,421,134.12x = 18,031,575,666,106.49 - Step 5: Solve for x
x = 18,031,575,666,106.49/6,421,134.12 - Step 6: Final answer
x = 2,808,160.57
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.