Finding the Fourth Proportional to 3,928,445,164.86, 5,420,445,048.51 and 2,257,371,455.58
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Solution
The fourth proportional to 3,928,445,164.86, 5,420,445,048.51 and 2,257,371,455.58 is: 3,114,707,579.09
Step by Step Solution
- Step 1: Write the proportion equation
3,928,445,164.86 : 5,420,445,048.51 = 2,257,371,455.58 : x - Step 2: Convert to fraction form
3,928,445,164.86/5,420,445,048.51 = 2,257,371,455.58/x - Step 3: Cross multiply
3,928,445,164.86x = 5,420,445,048.51 × 2,257,371,455.58 - Step 4: Simplify right side
3,928,445,164.86x = 12,235,957,929,046,421,504 - Step 5: Solve for x
x = 12,235,957,929,046,421,504/3,928,445,164.86 - Step 6: Final answer
x = 3,114,707,579.09
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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.