Finding the Fourth Proportional to 1,949,825,386.96, 2,690,052,892.14 and 1,281,130,585.18
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Solution
The fourth proportional to 1,949,825,386.96, 2,690,052,892.14 and 1,281,130,585.18 is: 1,767,496,237.83
Step by Step Solution
- Step 1: Write the proportion equation
1,949,825,386.96 : 2,690,052,892.14 = 1,281,130,585.18 : x - Step 2: Convert to fraction form
1,949,825,386.96/2,690,052,892.14 = 1,281,130,585.18/x - Step 3: Cross multiply
1,949,825,386.96x = 2,690,052,892.14 × 1,281,130,585.18 - Step 4: Simplify right side
1,949,825,386.96x = 3,446,309,035,872,469,504 - Step 5: Solve for x
x = 3,446,309,035,872,469,504/1,949,825,386.96 - Step 6: Final answer
x = 1,767,496,237.83
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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.