Finding the Fourth Proportional to 1,685,719,193.10, 2,528,578,789.65 and 716,244,837.90
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Solution
The fourth proportional to 1,685,719,193.10, 2,528,578,789.65 and 716,244,837.90 is: 1,074,367,256.85
Step by Step Solution
- Step 1: Write the proportion equation
1,685,719,193.10 : 2,528,578,789.65 = 716,244,837.90 : x - Step 2: Convert to fraction form
1,685,719,193.10/2,528,578,789.65 = 716,244,837.90/x - Step 3: Cross multiply
1,685,719,193.10x = 2,528,578,789.65 × 716,244,837.90 - Step 4: Simplify right side
1,685,719,193.10x = 1,811,081,505,310,242,560 - Step 5: Solve for x
x = 1,811,081,505,310,242,560/1,685,719,193.10 - Step 6: Final answer
x = 1,074,367,256.85
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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.