Finding the Fourth Proportional to 860,878,668.96, 1,291,309,493.58 and 394,407,777.24
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Solution
The fourth proportional to 860,878,668.96, 1,291,309,493.58 and 394,407,777.24 is: 591,607,767.11
Step by Step Solution
- Step 1: Write the proportion equation
860,878,668.96 : 1,291,309,493.58 = 394,407,777.24 : x - Step 2: Convert to fraction form
860,878,668.96/1,291,309,493.58 = 394,407,777.24/x - Step 3: Cross multiply
860,878,668.96x = 1,291,309,493.58 × 394,407,777.24 - Step 4: Simplify right side
860,878,668.96x = 509,302,507,091,797,824 - Step 5: Solve for x
x = 509,302,507,091,797,824/860,878,668.96 - Step 6: Final answer
x = 591,607,767.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.