Finding the Fourth Proportional to 152,930,129.48, 229,466,938.68 and 76,259,136.42
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Solution
The fourth proportional to 152,930,129.48, 229,466,938.68 and 76,259,136.42 is: 114,424,480.25
Step by Step Solution
- Step 1: Write the proportion equation
152,930,129.48 : 229,466,938.68 = 76,259,136.42 : x - Step 2: Convert to fraction form
152,930,129.48/229,466,938.68 = 76,259,136.42/x - Step 3: Cross multiply
152,930,129.48x = 229,466,938.68 × 76,259,136.42 - Step 4: Simplify right side
152,930,129.48x = 17,498,950,580,677,896 - Step 5: Solve for x
x = 17,498,950,580,677,896/152,930,129.48 - Step 6: Final answer
x = 114,424,480.25
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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.