Finding the Fourth Proportional to 1,570,751,999.80, 2,356,127,999.70 and 535,268,735.80
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Solution
The fourth proportional to 1,570,751,999.80, 2,356,127,999.70 and 535,268,735.80 is: 802,903,103.70
Step by Step Solution
- Step 1: Write the proportion equation
1,570,751,999.80 : 2,356,127,999.70 = 535,268,735.80 : x - Step 2: Convert to fraction form
1,570,751,999.80/2,356,127,999.70 = 535,268,735.80/x - Step 3: Cross multiply
1,570,751,999.80x = 2,356,127,999.70 × 535,268,735.80 - Step 4: Simplify right side
1,570,751,999.80x = 1,261,161,655,782,401,792 - Step 5: Solve for x
x = 1,261,161,655,782,401,792/1,570,751,999.80 - Step 6: Final answer
x = 802,903,103.70
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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.