Finding the Fourth Proportional to 3,938,214,611.34, 5,436,409,565.07 and 2,453,836,125.42
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Solution
The fourth proportional to 3,938,214,611.34, 5,436,409,565.07 and 2,453,836,125.42 is: 3,387,336,521.72
Step by Step Solution
- Step 1: Write the proportion equation
3,938,214,611.34 : 5,436,409,565.07 = 2,453,836,125.42 : x - Step 2: Convert to fraction form
3,938,214,611.34/5,436,409,565.07 = 2,453,836,125.42/x - Step 3: Cross multiply
3,938,214,611.34x = 5,436,409,565.07 × 2,453,836,125.42 - Step 4: Simplify right side
3,938,214,611.34x = 13,340,058,183,347,595,264 - Step 5: Solve for x
x = 13,340,058,183,347,595,264/3,938,214,611.34 - Step 6: Final answer
x = 3,387,336,521.72
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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.