Finding the Fourth Proportional to 2,171,109,335.36, 3,248,446,124 and 1,286,269,931.84
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Solution
The fourth proportional to 2,171,109,335.36, 3,248,446,124 and 1,286,269,931.84 is: 1,924,536,229.68
Step by Step Solution
- Step 1: Write the proportion equation
2,171,109,335.36 : 3,248,446,124 = 1,286,269,931.84 : x - Step 2: Convert to fraction form
2,171,109,335.36/3,248,446,124 = 1,286,269,931.84/x - Step 3: Cross multiply
2,171,109,335.36x = 3,248,446,124 × 1,286,269,931.84 - Step 4: Simplify right side
2,171,109,335.36x = 4,178,378,574,503,391,744 - Step 5: Solve for x
x = 4,178,378,574,503,391,744/2,171,109,335.36 - Step 6: Final answer
x = 1,924,536,229.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.