Finding the Fourth Proportional to 21,237,297.84, 29,307,479.40 and 12,069,704.88
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Solution
The fourth proportional to 21,237,297.84, 29,307,479.40 and 12,069,704.88 is: 16,656,197.50
Step by Step Solution
- Step 1: Write the proportion equation
21,237,297.84 : 29,307,479.40 = 12,069,704.88 : x - Step 2: Convert to fraction form
21,237,297.84/29,307,479.40 = 12,069,704.88/x - Step 3: Cross multiply
21,237,297.84x = 29,307,479.40 × 12,069,704.88 - Step 4: Simplify right side
21,237,297.84x = 353,732,627,134,679.50 - Step 5: Solve for x
x = 353,732,627,134,679.50/21,237,297.84 - Step 6: Final answer
x = 16,656,197.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.