Finding the Fourth Proportional to 19,430,234.80, 29,145,352.20 and 13,756,865.20
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Solution
The fourth proportional to 19,430,234.80, 29,145,352.20 and 13,756,865.20 is: 20,635,297.80
Step by Step Solution
- Step 1: Write the proportion equation
19,430,234.80 : 29,145,352.20 = 13,756,865.20 : x - Step 2: Convert to fraction form
19,430,234.80/29,145,352.20 = 13,756,865.20/x - Step 3: Cross multiply
19,430,234.80x = 29,145,352.20 × 13,756,865.20 - Step 4: Simplify right side
19,430,234.80x = 400,948,681,421,923.44 - Step 5: Solve for x
x = 400,948,681,421,923.44/19,430,234.80 - Step 6: Final answer
x = 20,635,297.80
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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.