Finding the Fourth Proportional to 1,990,476,864.20, 2,983,525,574.70 and 697,346,726.60
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Solution
The fourth proportional to 1,990,476,864.20, 2,983,525,574.70 and 697,346,726.60 is: 1,045,252,939.47
Step by Step Solution
- Step 1: Write the proportion equation
1,990,476,864.20 : 2,983,525,574.70 = 697,346,726.60 : x - Step 2: Convert to fraction form
1,990,476,864.20/2,983,525,574.70 = 697,346,726.60/x - Step 3: Cross multiply
1,990,476,864.20x = 2,983,525,574.70 × 697,346,726.60 - Step 4: Simplify right side
1,990,476,864.20x = 2,080,551,793,244,428,800 - Step 5: Solve for x
x = 2,080,551,793,244,428,800/1,990,476,864.20 - Step 6: Final answer
x = 1,045,252,939.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.