Finding the Fourth Proportional to 1,174,567,609.76, 1,620,945,919.26 and 672,873,355.44
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Solution
The fourth proportional to 1,174,567,609.76, 1,620,945,919.26 and 672,873,355.44 is: 928,589,644.92
Step by Step Solution
- Step 1: Write the proportion equation
1,174,567,609.76 : 1,620,945,919.26 = 672,873,355.44 : x - Step 2: Convert to fraction form
1,174,567,609.76/1,620,945,919.26 = 672,873,355.44/x - Step 3: Cross multiply
1,174,567,609.76x = 1,620,945,919.26 × 672,873,355.44 - Step 4: Simplify right side
1,174,567,609.76x = 1,090,691,319,679,251,584 - Step 5: Solve for x
x = 1,090,691,319,679,251,584/1,174,567,609.76 - Step 6: Final answer
x = 928,589,644.92
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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.