Finding the Fourth Proportional to 293,815,539.20, 440,723,308.80 and 157,766,643.20
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Solution
The fourth proportional to 293,815,539.20, 440,723,308.80 and 157,766,643.20 is: 236,649,964.80
Step by Step Solution
- Step 1: Write the proportion equation
293,815,539.20 : 440,723,308.80 = 157,766,643.20 : x - Step 2: Convert to fraction form
293,815,539.20/440,723,308.80 = 157,766,643.20/x - Step 3: Cross multiply
293,815,539.20x = 440,723,308.80 × 157,766,643.20 - Step 4: Simplify right side
293,815,539.20x = 69,531,437,009,373,016 - Step 5: Solve for x
x = 69,531,437,009,373,016/293,815,539.20 - Step 6: Final answer
x = 236,649,964.80
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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.