Finding the Fourth Proportional to 1,624,043,420.21, 2,241,119,907.73 and 881,471,539.73
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Solution
The fourth proportional to 1,624,043,420.21, 2,241,119,907.73 and 881,471,539.73 is: 1,216,398,152.42
Step by Step Solution
- Step 1: Write the proportion equation
1,624,043,420.21 : 2,241,119,907.73 = 881,471,539.73 : x - Step 2: Convert to fraction form
1,624,043,420.21/2,241,119,907.73 = 881,471,539.73/x - Step 3: Cross multiply
1,624,043,420.21x = 2,241,119,907.73 × 881,471,539.73 - Step 4: Simplify right side
1,624,043,420.21x = 1,975,483,415,786,318,592 - Step 5: Solve for x
x = 1,975,483,415,786,318,592/1,624,043,420.21 - Step 6: Final answer
x = 1,216,398,152.42
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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.