Finding the Fourth Proportional to 25,705,320.80, 38,620,966.80 and 19,328,028.80
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Solution
The fourth proportional to 25,705,320.80, 38,620,966.80 and 19,328,028.80 is: 29,039,402.56
Step by Step Solution
- Step 1: Write the proportion equation
25,705,320.80 : 38,620,966.80 = 19,328,028.80 : x - Step 2: Convert to fraction form
25,705,320.80/38,620,966.80 = 19,328,028.80/x - Step 3: Cross multiply
25,705,320.80x = 38,620,966.80 × 19,328,028.80 - Step 4: Simplify right side
25,705,320.80x = 746,467,158,594,243.75 - Step 5: Solve for x
x = 746,467,158,594,243.75/25,705,320.80 - Step 6: Final answer
x = 29,039,402.56
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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.