Finding the Fourth Proportional to 19,684,006.20, 29,526,009.30 and 15,574,195.80
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Solution
The fourth proportional to 19,684,006.20, 29,526,009.30 and 15,574,195.80 is: 23,361,293.70
Step by Step Solution
- Step 1: Write the proportion equation
19,684,006.20 : 29,526,009.30 = 15,574,195.80 : x - Step 2: Convert to fraction form
19,684,006.20/29,526,009.30 = 15,574,195.80/x - Step 3: Cross multiply
19,684,006.20x = 29,526,009.30 × 15,574,195.80 - Step 4: Simplify right side
19,684,006.20x = 459,843,850,030,821 - Step 5: Solve for x
x = 459,843,850,030,821/19,684,006.20 - Step 6: Final answer
x = 23,361,293.70
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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.