Finding the Fourth Proportional to 1,299,084,847.80, 1,948,627,271.70 and 610,337,311.80
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Solution
The fourth proportional to 1,299,084,847.80, 1,948,627,271.70 and 610,337,311.80 is: 915,505,967.70
Step by Step Solution
- Step 1: Write the proportion equation
1,299,084,847.80 : 1,948,627,271.70 = 610,337,311.80 : x - Step 2: Convert to fraction form
1,299,084,847.80/1,948,627,271.70 = 610,337,311.80/x - Step 3: Cross multiply
1,299,084,847.80x = 1,948,627,271.70 × 610,337,311.80 - Step 4: Simplify right side
1,299,084,847.80x = 1,189,319,930,709,546,240 - Step 5: Solve for x
x = 1,189,319,930,709,546,240/1,299,084,847.80 - Step 6: Final answer
x = 915,505,967.70
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1.5x scale
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.