Finding the Fourth Proportional to 4,199,047,309.20, 6,298,570,963.80 and 1,290,624,243.60
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Solution
The fourth proportional to 4,199,047,309.20, 6,298,570,963.80 and 1,290,624,243.60 is: 1,935,936,365.40
Step by Step Solution
- Step 1: Write the proportion equation
4,199,047,309.20 : 6,298,570,963.80 = 1,290,624,243.60 : x - Step 2: Convert to fraction form
4,199,047,309.20/6,298,570,963.80 = 1,290,624,243.60/x - Step 3: Cross multiply
4,199,047,309.20x = 6,298,570,963.80 × 1,290,624,243.60 - Step 4: Simplify right side
4,199,047,309.20x = 8,129,088,385,915,297,792 - Step 5: Solve for x
x = 8,129,088,385,915,297,792/4,199,047,309.20 - Step 6: Final answer
x = 1,935,936,365.40
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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.