Finding the Fourth Proportional to 5,118,556,625.74, 7,063,634,263.86 and 2,860,533,839.02
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Solution
The fourth proportional to 5,118,556,625.74, 7,063,634,263.86 and 2,860,533,839.02 is: 3,947,551,295.34
Step by Step Solution
- Step 1: Write the proportion equation
5,118,556,625.74 : 7,063,634,263.86 = 2,860,533,839.02 : x - Step 2: Convert to fraction form
5,118,556,625.74/7,063,634,263.86 = 2,860,533,839.02/x - Step 3: Cross multiply
5,118,556,625.74x = 7,063,634,263.86 × 2,860,533,839.02 - Step 4: Simplify right side
5,118,556,625.74x = 20,205,764,838,232,657,920 - Step 5: Solve for x
x = 20,205,764,838,232,657,920/5,118,556,625.74 - Step 6: Final answer
x = 3,947,551,295.34
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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.