Finding the Fourth Proportional to 5,118,556,616.75, 7,063,634,251.44 and 2,860,533,830.02
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Solution
The fourth proportional to 5,118,556,616.75, 7,063,634,251.44 and 2,860,533,830.02 is: 3,947,551,282.92
Step by Step Solution
- Step 1: Write the proportion equation
5,118,556,616.75 : 7,063,634,251.44 = 2,860,533,830.02 : x - Step 2: Convert to fraction form
5,118,556,616.75/7,063,634,251.44 = 2,860,533,830.02/x - Step 3: Cross multiply
5,118,556,616.75x = 7,063,634,251.44 × 2,860,533,830.02 - Step 4: Simplify right side
5,118,556,616.75x = 20,205,764,739,132,116,992 - Step 5: Solve for x
x = 20,205,764,739,132,116,992/5,118,556,616.75 - Step 6: Final answer
x = 3,947,551,282.92
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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.