Finding the Fourth Proportional to 1,299,084,867.80, 1,948,627,301.70 and 610,337,331.80
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Solution
The fourth proportional to 1,299,084,867.80, 1,948,627,301.70 and 610,337,331.80 is: 915,505,997.70
Step by Step Solution
- Step 1: Write the proportion equation
1,299,084,867.80 : 1,948,627,301.70 = 610,337,331.80 : x - Step 2: Convert to fraction form
1,299,084,867.80/1,948,627,301.70 = 610,337,331.80/x - Step 3: Cross multiply
1,299,084,867.80x = 1,948,627,301.70 × 610,337,331.80 - Step 4: Simplify right side
1,299,084,867.80x = 1,189,319,987,992,211,456 - Step 5: Solve for x
x = 1,189,319,987,992,211,456/1,299,084,867.80 - Step 6: Final answer
x = 915,505,997.70
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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.