Finding the Fourth Proportional to 1,551,354,538.80, 2,327,031,808.20 and 970,879,249.20
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Solution
The fourth proportional to 1,551,354,538.80, 2,327,031,808.20 and 970,879,249.20 is: 1,456,318,873.80
Step by Step Solution
- Step 1: Write the proportion equation
1,551,354,538.80 : 2,327,031,808.20 = 970,879,249.20 : x - Step 2: Convert to fraction form
1,551,354,538.80/2,327,031,808.20 = 970,879,249.20/x - Step 3: Cross multiply
1,551,354,538.80x = 2,327,031,808.20 × 970,879,249.20 - Step 4: Simplify right side
1,551,354,538.80x = 2,259,266,894,809,734,400 - Step 5: Solve for x
x = 2,259,266,894,809,734,400/1,551,354,538.80 - Step 6: Final answer
x = 1,456,318,873.80
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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.