Finding the Fourth Proportional to 1,262,461,409.33, 1,742,250,549.51 and 705,544,439.99
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Solution
The fourth proportional to 1,262,461,409.33, 1,742,250,549.51 and 705,544,439.99 is: 973,681,396.67
Step by Step Solution
- Step 1: Write the proportion equation
1,262,461,409.33 : 1,742,250,549.51 = 705,544,439.99 : x - Step 2: Convert to fraction form
1,262,461,409.33/1,742,250,549.51 = 705,544,439.99/x - Step 3: Cross multiply
1,262,461,409.33x = 1,742,250,549.51 × 705,544,439.99 - Step 4: Simplify right side
1,262,461,409.33x = 1,229,235,188,267,591,424 - Step 5: Solve for x
x = 1,229,235,188,267,591,424/1,262,461,409.33 - Step 6: Final answer
x = 973,681,396.67
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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.