Finding the Fourth Proportional to 5,251,619,900.78, 7,247,408,322.18 and 2,872,703,398.14
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Solution
The fourth proportional to 5,251,619,900.78, 7,247,408,322.18 and 2,872,703,398.14 is: 3,964,425,245.58
Step by Step Solution
- Step 1: Write the proportion equation
5,251,619,900.78 : 7,247,408,322.18 = 2,872,703,398.14 : x - Step 2: Convert to fraction form
5,251,619,900.78/7,247,408,322.18 = 2,872,703,398.14/x - Step 3: Cross multiply
5,251,619,900.78x = 7,247,408,322.18 × 2,872,703,398.14 - Step 4: Simplify right side
5,251,619,900.78x = 20,819,654,514,845,536,256 - Step 5: Solve for x
x = 20,819,654,514,845,536,256/5,251,619,900.78 - Step 6: Final answer
x = 3,964,425,245.58
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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.