Finding the Fourth Proportional to 21,590,420.40, 32,389,259.40 and 6,445,882.80
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Solution
The fourth proportional to 21,590,420.40, 32,389,259.40 and 6,445,882.80 is: 9,669,907.59
Step by Step Solution
- Step 1: Write the proportion equation
21,590,420.40 : 32,389,259.40 = 6,445,882.80 : x - Step 2: Convert to fraction form
21,590,420.40/32,389,259.40 = 6,445,882.80/x - Step 3: Cross multiply
21,590,420.40x = 32,389,259.40 × 6,445,882.80 - Step 4: Simplify right side
21,590,420.40x = 208,777,370,071,198.31 - Step 5: Solve for x
x = 208,777,370,071,198.31/21,590,420.40 - Step 6: Final answer
x = 9,669,907.59
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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.