Finding the Fourth Proportional to 863,267,607.18, 1,191,237,279.48 and 486,903,452.94
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Solution
The fourth proportional to 863,267,607.18, 1,191,237,279.48 and 486,903,452.94 is: 671,886,144.95
Step by Step Solution
- Step 1: Write the proportion equation
863,267,607.18 : 1,191,237,279.48 = 486,903,452.94 : x - Step 2: Convert to fraction form
863,267,607.18/1,191,237,279.48 = 486,903,452.94/x - Step 3: Cross multiply
863,267,607.18x = 1,191,237,279.48 × 486,903,452.94 - Step 4: Simplify right side
863,267,607.18x = 580,017,544,649,663,872 - Step 5: Solve for x
x = 580,017,544,649,663,872/863,267,607.18 - Step 6: Final answer
x = 671,886,144.95
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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.