Finding the Fourth Proportional to 65,187,010.80, 97,780,516.20 and 19,748,805.30
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Solution
The fourth proportional to 65,187,010.80, 97,780,516.20 and 19,748,805.30 is: 29,623,207.95
Step by Step Solution
- Step 1: Write the proportion equation
65,187,010.80 : 97,780,516.20 = 19,748,805.30 : x - Step 2: Convert to fraction form
65,187,010.80/97,780,516.20 = 19,748,805.30/x - Step 3: Cross multiply
65,187,010.80x = 97,780,516.20 × 19,748,805.30 - Step 4: Simplify right side
65,187,010.80x = 1,931,048,376,567,296 - Step 5: Solve for x
x = 1,931,048,376,567,296/65,187,010.80 - Step 6: Final answer
x = 29,623,207.95
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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.