Finding the Fourth Proportional to 1,949,825,713.21, 2,690,053,340.73 and 1,281,130,913.05
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Solution
The fourth proportional to 1,949,825,713.21, 2,690,053,340.73 and 1,281,130,913.05 is: 1,767,496,689.17
Step by Step Solution
- Step 1: Write the proportion equation
1,949,825,713.21 : 2,690,053,340.73 = 1,281,130,913.05 : x - Step 2: Convert to fraction form
1,949,825,713.21/2,690,053,340.73 = 1,281,130,913.05/x - Step 3: Cross multiply
1,949,825,713.21x = 2,690,053,340.73 × 1,281,130,913.05 - Step 4: Simplify right side
1,949,825,713.21x = 3,446,310,492,562,627,584 - Step 5: Solve for x
x = 3,446,310,492,562,627,584/1,949,825,713.21 - Step 6: Final answer
x = 1,767,496,689.17
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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.