Finding the Fourth Proportional to 19,942,795.90, 29,910,046.65 and 8,583,615.10
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Solution
The fourth proportional to 19,942,795.90, 29,910,046.65 and 8,583,615.10 is: 12,873,637.65
Step by Step Solution
- Step 1: Write the proportion equation
19,942,795.90 : 29,910,046.65 = 8,583,615.10 : x - Step 2: Convert to fraction form
19,942,795.90/29,910,046.65 = 8,583,615.10/x - Step 3: Cross multiply
19,942,795.90x = 29,910,046.65 × 8,583,615.10 - Step 4: Simplify right side
19,942,795.90x = 256,736,328,066,644.41 - Step 5: Solve for x
x = 256,736,328,066,644.41/19,942,795.90 - Step 6: Final answer
x = 12,873,637.65
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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.