Finding the Fourth Proportional to 7,487,363.20, 11,231,044.80 and 2,438,673.70
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Solution
The fourth proportional to 7,487,363.20, 11,231,044.80 and 2,438,673.70 is: 3,658,010.55
Step by Step Solution
- Step 1: Write the proportion equation
7,487,363.20 : 11,231,044.80 = 2,438,673.70 : x - Step 2: Convert to fraction form
7,487,363.20/11,231,044.80 = 2,438,673.70/x - Step 3: Cross multiply
7,487,363.20x = 11,231,044.80 × 2,438,673.70 - Step 4: Simplify right side
7,487,363.20x = 27,388,853,577,281.77 - Step 5: Solve for x
x = 27,388,853,577,281.77/7,487,363.20 - Step 6: Final answer
x = 3,658,010.55
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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.