Finding the Fourth Proportional to 4,872,131,019.56, 6,723,360,768.67 and 2,644,415,378.12
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Solution
The fourth proportional to 4,872,131,019.56, 6,723,360,768.67 and 2,644,415,378.12 is: 3,649,195,503.55
Step by Step Solution
- Step 1: Write the proportion equation
4,872,131,019.56 : 6,723,360,768.67 = 2,644,415,378.12 : x - Step 2: Convert to fraction form
4,872,131,019.56/6,723,360,768.67 = 2,644,415,378.12/x - Step 3: Cross multiply
4,872,131,019.56x = 6,723,360,768.67 × 2,644,415,378.12 - Step 4: Simplify right side
4,872,131,019.56x = 17,779,358,609,279,420,416 - Step 5: Solve for x
x = 17,779,358,609,279,420,416/4,872,131,019.56 - Step 6: Final answer
x = 3,649,195,503.55
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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.