Finding the Fourth Proportional to 1,067,089,489.80, 1,600,634,234.70 and 885,690,961.80
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Solution
The fourth proportional to 1,067,089,489.80, 1,600,634,234.70 and 885,690,961.80 is: 1,328,536,442.70
Step by Step Solution
- Step 1: Write the proportion equation
1,067,089,489.80 : 1,600,634,234.70 = 885,690,961.80 : x - Step 2: Convert to fraction form
1,067,089,489.80/1,600,634,234.70 = 885,690,961.80/x - Step 3: Cross multiply
1,067,089,489.80x = 1,600,634,234.70 × 885,690,961.80 - Step 4: Simplify right side
1,067,089,489.80x = 1,417,667,274,821,449,984 - Step 5: Solve for x
x = 1,417,667,274,821,449,984/1,067,089,489.80 - Step 6: Final answer
x = 1,328,536,442.70
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Double scale
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Similar ratio
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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.