Finding the Fourth Proportional to 845,778,832.80, 1,268,668,249.20 and 788,383,204.80
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Solution
The fourth proportional to 845,778,832.80, 1,268,668,249.20 and 788,383,204.80 is: 1,182,574,807.20
Step by Step Solution
- Step 1: Write the proportion equation
845,778,832.80 : 1,268,668,249.20 = 788,383,204.80 : x - Step 2: Convert to fraction form
845,778,832.80/1,268,668,249.20 = 788,383,204.80/x - Step 3: Cross multiply
845,778,832.80x = 1,268,668,249.20 × 788,383,204.80 - Step 4: Simplify right side
845,778,832.80x = 1,000,196,740,132,301,056 - Step 5: Solve for x
x = 1,000,196,740,132,301,056/845,778,832.80 - Step 6: Final answer
x = 1,182,574,807.20
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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.