Finding the Fourth Proportional to 26,278,118.20, 39,390,350.10 and 17,759,315.80
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Solution
The fourth proportional to 26,278,118.20, 39,390,350.10 and 17,759,315.80 is: 26,620,843.30
Step by Step Solution
- Step 1: Write the proportion equation
26,278,118.20 : 39,390,350.10 = 17,759,315.80 : x - Step 2: Convert to fraction form
26,278,118.20/39,390,350.10 = 17,759,315.80/x - Step 3: Cross multiply
26,278,118.20x = 39,390,350.10 × 17,759,315.80 - Step 4: Simplify right side
26,278,118.20x = 699,545,666,898,461.62 - Step 5: Solve for x
x = 699,545,666,898,461.62/26,278,118.20 - Step 6: Final answer
x = 26,620,843.30
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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.