Finding the Fourth Proportional to 5,356,127,760.21, 7,390,948,887.77 and 2,976,983,189.01
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Solution
The fourth proportional to 5,356,127,760.21, 7,390,948,887.77 and 2,976,983,189.01 is: 4,107,954,771.57
Step by Step Solution
- Step 1: Write the proportion equation
5,356,127,760.21 : 7,390,948,887.77 = 2,976,983,189.01 : x - Step 2: Convert to fraction form
5,356,127,760.21/7,390,948,887.77 = 2,976,983,189.01/x - Step 3: Cross multiply
5,356,127,760.21x = 7,390,948,887.77 × 2,976,983,189.01 - Step 4: Simplify right side
5,356,127,760.21x = 22,002,730,589,708,566,528 - Step 5: Solve for x
x = 22,002,730,589,708,566,528/5,356,127,760.21 - Step 6: Final answer
x = 4,107,954,771.57
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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.