Finding the Fourth Proportional to 4,921,098,647.22, 6,790,385,589.30 and 2,988,860,949.14
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Solution
The fourth proportional to 4,921,098,647.22, 6,790,385,589.30 and 2,988,860,949.14 is: 4,124,184,409.29
Step by Step Solution
- Step 1: Write the proportion equation
4,921,098,647.22 : 6,790,385,589.30 = 2,988,860,949.14 : x - Step 2: Convert to fraction form
4,921,098,647.22/6,790,385,589.30 = 2,988,860,949.14/x - Step 3: Cross multiply
4,921,098,647.22x = 6,790,385,589.30 × 2,988,860,949.14 - Step 4: Simplify right side
4,921,098,647.22x = 20,295,518,317,427,826,688 - Step 5: Solve for x
x = 20,295,518,317,427,826,688/4,921,098,647.22 - Step 6: Final answer
x = 4,124,184,409.29
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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.