Finding the Fourth Proportional to 2,011,936,891.40, 2,776,473,043.64 and 1,119,844,473.20
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Solution
The fourth proportional to 2,011,936,891.40, 2,776,473,043.64 and 1,119,844,473.20 is: 1,545,385,447.33
Step by Step Solution
- Step 1: Write the proportion equation
2,011,936,891.40 : 2,776,473,043.64 = 1,119,844,473.20 : x - Step 2: Convert to fraction form
2,011,936,891.40/2,776,473,043.64 = 1,119,844,473.20/x - Step 3: Cross multiply
2,011,936,891.40x = 2,776,473,043.64 × 1,119,844,473.20 - Step 4: Simplify right side
2,011,936,891.40x = 3,109,217,992,909,036,544 - Step 5: Solve for x
x = 3,109,217,992,909,036,544/2,011,936,891.40 - Step 6: Final answer
x = 1,545,385,447.33
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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.