Finding the Fourth Proportional to 4,872,131,021.56, 6,723,360,771.43 and 2,644,415,380.12
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Solution
The fourth proportional to 4,872,131,021.56, 6,723,360,771.43 and 2,644,415,380.12 is: 3,649,195,506.32
Step by Step Solution
- Step 1: Write the proportion equation
4,872,131,021.56 : 6,723,360,771.43 = 2,644,415,380.12 : x - Step 2: Convert to fraction form
4,872,131,021.56/6,723,360,771.43 = 2,644,415,380.12/x - Step 3: Cross multiply
4,872,131,021.56x = 6,723,360,771.43 × 2,644,415,380.12 - Step 4: Simplify right side
4,872,131,021.56x = 17,779,358,630,064,959,488 - Step 5: Solve for x
x = 17,779,358,630,064,959,488/4,872,131,021.56 - Step 6: Final answer
x = 3,649,195,506.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.