Finding the Fourth Proportional to 437,449,402.88, 603,395,729.35 and 280,568,019.68
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Solution
The fourth proportional to 437,449,402.88, 603,395,729.35 and 280,568,019.68 is: 387,001,430.91
Step by Step Solution
- Step 1: Write the proportion equation
437,449,402.88 : 603,395,729.35 = 280,568,019.68 : x - Step 2: Convert to fraction form
437,449,402.88/603,395,729.35 = 280,568,019.68/x - Step 3: Cross multiply
437,449,402.88x = 603,395,729.35 × 280,568,019.68 - Step 4: Simplify right side
437,449,402.88x = 169,293,544,863,380,352 - Step 5: Solve for x
x = 169,293,544,863,380,352/437,449,402.88 - Step 6: Final answer
x = 387,001,430.91
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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.