Finding the Fourth Proportional to 391,542,195.48, 587,187,566.82 and 129,167,773.08
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Solution
The fourth proportional to 391,542,195.48, 587,187,566.82 and 129,167,773.08 is: 193,710,183.12
Step by Step Solution
- Step 1: Write the proportion equation
391,542,195.48 : 587,187,566.82 = 129,167,773.08 : x - Step 2: Convert to fraction form
391,542,195.48/587,187,566.82 = 129,167,773.08/x - Step 3: Cross multiply
391,542,195.48x = 587,187,566.82 × 129,167,773.08 - Step 4: Simplify right side
391,542,195.48x = 75,845,710,386,403,104 - Step 5: Solve for x
x = 75,845,710,386,403,104/391,542,195.48 - Step 6: Final answer
x = 193,710,183.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.