Finding the Fourth Proportional to 30,521,794.20, 45,782,691.30 and 26,411,983.80
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Solution
The fourth proportional to 30,521,794.20, 45,782,691.30 and 26,411,983.80 is: 39,617,975.70
Step by Step Solution
- Step 1: Write the proportion equation
30,521,794.20 : 45,782,691.30 = 26,411,983.80 : x - Step 2: Convert to fraction form
30,521,794.20/45,782,691.30 = 26,411,983.80/x - Step 3: Cross multiply
30,521,794.20x = 45,782,691.30 × 26,411,983.80 - Step 4: Simplify right side
30,521,794.20x = 1,209,211,700,936,001 - Step 5: Solve for x
x = 1,209,211,700,936,001/30,521,794.20 - Step 6: Final answer
x = 39,617,975.70
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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.