Finding the Fourth Proportional to 21,160,308.26, 29,201,545.35 and 11,869,937.73
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Solution
The fourth proportional to 21,160,308.26, 29,201,545.35 and 11,869,937.73 is: 16,380,693.55
Step by Step Solution
- Step 1: Write the proportion equation
21,160,308.26 : 29,201,545.35 = 11,869,937.73 : x - Step 2: Convert to fraction form
21,160,308.26/29,201,545.35 = 11,869,937.73/x - Step 3: Cross multiply
21,160,308.26x = 29,201,545.35 × 11,869,937.73 - Step 4: Simplify right side
21,160,308.26x = 346,620,524,924,271.06 - Step 5: Solve for x
x = 346,620,524,924,271.06/21,160,308.26 - Step 6: Final answer
x = 16,380,693.55
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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.