Finding the Fourth Proportional to 959,421,556.44, 1,324,002,190.86 and 519,388,408.44
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Solution
The fourth proportional to 959,421,556.44, 1,324,002,190.86 and 519,388,408.44 is: 716,756,243.45
Step by Step Solution
- Step 1: Write the proportion equation
959,421,556.44 : 1,324,002,190.86 = 519,388,408.44 : x - Step 2: Convert to fraction form
959,421,556.44/1,324,002,190.86 = 519,388,408.44/x - Step 3: Cross multiply
959,421,556.44x = 1,324,002,190.86 × 519,388,408.44 - Step 4: Simplify right side
959,421,556.44x = 687,671,390,681,848,448 - Step 5: Solve for x
x = 687,671,390,681,848,448/959,421,556.44 - Step 6: Final answer
x = 716,756,243.45
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Double scale
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1.5x scale
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.