Finding the Fourth Proportional to 1,327,742,112.69, 1,991,585,819.68 and 442,491,759.68
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Solution
The fourth proportional to 1,327,742,112.69, 1,991,585,819.68 and 442,491,759.68 is: 663,728,524.90
Step by Step Solution
- Step 1: Write the proportion equation
1,327,742,112.69 : 1,991,585,819.68 = 442,491,759.68 : x - Step 2: Convert to fraction form
1,327,742,112.69/1,991,585,819.68 = 442,491,759.68/x - Step 3: Cross multiply
1,327,742,112.69x = 1,991,585,819.68 × 442,491,759.68 - Step 4: Simplify right side
1,327,742,112.69x = 881,260,313,903,938,432 - Step 5: Solve for x
x = 881,260,313,903,938,432/1,327,742,112.69 - Step 6: Final answer
x = 663,728,524.90
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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.