Finding the Fourth Proportional to 1,980,565,517.70, 2,970,848,276.55 and 1,062,235,469.70
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Solution
The fourth proportional to 1,980,565,517.70, 2,970,848,276.55 and 1,062,235,469.70 is: 1,593,353,204.55
Step by Step Solution
- Step 1: Write the proportion equation
1,980,565,517.70 : 2,970,848,276.55 = 1,062,235,469.70 : x - Step 2: Convert to fraction form
1,980,565,517.70/2,970,848,276.55 = 1,062,235,469.70/x - Step 3: Cross multiply
1,980,565,517.70x = 2,970,848,276.55 × 1,062,235,469.70 - Step 4: Simplify right side
1,980,565,517.70x = 3,155,740,414,448,525,312 - Step 5: Solve for x
x = 3,155,740,414,448,525,312/1,980,565,517.70 - Step 6: Final answer
x = 1,593,353,204.55
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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.