Finding the Fourth Proportional to 961,848,973.44, 1,327,354,155.84 and 521,815,825.44
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Solution
The fourth proportional to 961,848,973.44, 1,327,354,155.84 and 521,815,825.44 is: 720,107,234.72
Step by Step Solution
- Step 1: Write the proportion equation
961,848,973.44 : 1,327,354,155.84 = 521,815,825.44 : x - Step 2: Convert to fraction form
961,848,973.44/1,327,354,155.84 = 521,815,825.44/x - Step 3: Cross multiply
961,848,973.44x = 1,327,354,155.84 × 521,815,825.44 - Step 4: Simplify right side
961,848,973.44x = 692,634,404,480,864,000 - Step 5: Solve for x
x = 692,634,404,480,864,000/961,848,973.44 - Step 6: Final answer
x = 720,107,234.72
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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.