Finding the Fourth Proportional to 38,642,954.20, 57,971,429.70 and 19,425,347.80
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Solution
The fourth proportional to 38,642,954.20, 57,971,429.70 and 19,425,347.80 is: 29,141,539.71
Step by Step Solution
- Step 1: Write the proportion equation
38,642,954.20 : 57,971,429.70 = 19,425,347.80 : x - Step 2: Convert to fraction form
38,642,954.20/57,971,429.70 = 19,425,347.80/x - Step 3: Cross multiply
38,642,954.20x = 57,971,429.70 × 19,425,347.80 - Step 4: Simplify right side
38,642,954.20x = 1,126,115,184,385,749.75 - Step 5: Solve for x
x = 1,126,115,184,385,749.75/38,642,954.20 - Step 6: Final answer
x = 29,141,539.71
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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.