Finding the Fourth Proportional to 7,756,779.80, 11,635,169.70 and 6,561,037.55
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Solution
The fourth proportional to 7,756,779.80, 11,635,169.70 and 6,561,037.55 is: 9,841,556.33
Step by Step Solution
- Step 1: Write the proportion equation
7,756,779.80 : 11,635,169.70 = 6,561,037.55 : x - Step 2: Convert to fraction form
7,756,779.80/11,635,169.70 = 6,561,037.55/x - Step 3: Cross multiply
7,756,779.80x = 11,635,169.70 × 6,561,037.55 - Step 4: Simplify right side
7,756,779.80x = 76,338,785,302,322.23 - Step 5: Solve for x
x = 76,338,785,302,322.23/7,756,779.80 - Step 6: Final answer
x = 9,841,556.33
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1.5x scale
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.