Finding the Fourth Proportional to 38,761,854.96, 53,493,742.68 and 21,358,195.68
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Solution
The fourth proportional to 38,761,854.96, 53,493,742.68 and 21,358,195.68 is: 29,475,623.01
Step by Step Solution
- Step 1: Write the proportion equation
38,761,854.96 : 53,493,742.68 = 21,358,195.68 : x - Step 2: Convert to fraction form
38,761,854.96/53,493,742.68 = 21,358,195.68/x - Step 3: Cross multiply
38,761,854.96x = 53,493,742.68 × 21,358,195.68 - Step 4: Simplify right side
38,761,854.96x = 1,142,529,823,815,007.50 - Step 5: Solve for x
x = 1,142,529,823,815,007.50/38,761,854.96 - Step 6: Final answer
x = 29,475,623.01
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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.