Finding the Fourth Proportional to 3,999,370,246.80, 5,585,343,394.80 and 3,999,370,246.80
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Solution
The fourth proportional to 3,999,370,246.80, 5,585,343,394.80 and 3,999,370,246.80 is: 5,585,343,394.80
Step by Step Solution
- Step 1: Write the proportion equation
3,999,370,246.80 : 5,585,343,394.80 = 3,999,370,246.80 : x - Step 2: Convert to fraction form
3,999,370,246.80/5,585,343,394.80 = 3,999,370,246.80/x - Step 3: Cross multiply
3,999,370,246.80x = 5,585,343,394.80 × 3,999,370,246.80 - Step 4: Simplify right side
3,999,370,246.80x = 22,337,856,191,324,028,928 - Step 5: Solve for x
x = 22,337,856,191,324,028,928/3,999,370,246.80 - Step 6: Final answer
x = 5,585,343,394.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.