Finding the Fourth Proportional to 5,251,619,903.28, 7,247,408,325.63 and 2,872,703,400.64
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Solution
The fourth proportional to 5,251,619,903.28, 7,247,408,325.63 and 2,872,703,400.64 is: 3,964,425,249.03
Step by Step Solution
- Step 1: Write the proportion equation
5,251,619,903.28 : 7,247,408,325.63 = 2,872,703,400.64 : x - Step 2: Convert to fraction form
5,251,619,903.28/7,247,408,325.63 = 2,872,703,400.64/x - Step 3: Cross multiply
5,251,619,903.28x = 7,247,408,325.63 × 2,872,703,400.64 - Step 4: Simplify right side
5,251,619,903.28x = 20,819,654,542,863,949,824 - Step 5: Solve for x
x = 20,819,654,542,863,949,824/5,251,619,903.28 - Step 6: Final answer
x = 3,964,425,249.03
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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.