Finding the Fourth Proportional to 5,315,395,396.60, 7,972,337,267.70 and 1,821,962,078.20
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Solution
The fourth proportional to 5,315,395,396.60, 7,972,337,267.70 and 1,821,962,078.20 is: 2,732,684,041.84
Step by Step Solution
- Step 1: Write the proportion equation
5,315,395,396.60 : 7,972,337,267.70 = 1,821,962,078.20 : x - Step 2: Convert to fraction form
5,315,395,396.60/7,972,337,267.70 = 1,821,962,078.20/x - Step 3: Cross multiply
5,315,395,396.60x = 7,972,337,267.70 × 1,821,962,078.20 - Step 4: Simplify right side
5,315,395,396.60x = 14,525,296,176,370,001,920 - Step 5: Solve for x
x = 14,525,296,176,370,001,920/5,315,395,396.60 - Step 6: Final answer
x = 2,732,684,041.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.