Finding the Fourth Proportional to 19,788,337.80, 29,682,506.70 and 16,953,985.80
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Solution
The fourth proportional to 19,788,337.80, 29,682,506.70 and 16,953,985.80 is: 25,430,978.70
Step by Step Solution
- Step 1: Write the proportion equation
19,788,337.80 : 29,682,506.70 = 16,953,985.80 : x - Step 2: Convert to fraction form
19,788,337.80/29,682,506.70 = 16,953,985.80/x - Step 3: Cross multiply
19,788,337.80x = 29,682,506.70 × 16,953,985.80 - Step 4: Simplify right side
19,788,337.80x = 503,236,797,100,204.88 - Step 5: Solve for x
x = 503,236,797,100,204.88/19,788,337.80 - Step 6: Final answer
x = 25,430,978.70
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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.