Finding the Fourth Proportional to 1,778,296,616.28, 2,454,052,215.20 and 974,396,369.44
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Solution
The fourth proportional to 1,778,296,616.28, 2,454,052,215.20 and 974,396,369.44 is: 1,344,668,570.48
Step by Step Solution
- Step 1: Write the proportion equation
1,778,296,616.28 : 2,454,052,215.20 = 974,396,369.44 : x - Step 2: Convert to fraction form
1,778,296,616.28/2,454,052,215.20 = 974,396,369.44/x - Step 3: Cross multiply
1,778,296,616.28x = 2,454,052,215.20 × 974,396,369.44 - Step 4: Simplify right side
1,778,296,616.28x = 2,391,219,568,905,265,152 - Step 5: Solve for x
x = 2,391,219,568,905,265,152/1,778,296,616.28 - Step 6: Final answer
x = 1,344,668,570.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.