Finding the Fourth Proportional to 6,464,078.96, 8,920,455.99 and 3,563,406.32
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Solution
The fourth proportional to 6,464,078.96, 8,920,455.99 and 3,563,406.32 is: 4,917,515.62
Step by Step Solution
- Step 1: Write the proportion equation
6,464,078.96 : 8,920,455.99 = 3,563,406.32 : x - Step 2: Convert to fraction form
6,464,078.96/8,920,455.99 = 3,563,406.32/x - Step 3: Cross multiply
6,464,078.96x = 8,920,455.99 × 3,563,406.32 - Step 4: Simplify right side
6,464,078.96x = 31,787,209,252,047.86 - Step 5: Solve for x
x = 31,787,209,252,047.86/6,464,078.96 - Step 6: Final answer
x = 4,917,515.62
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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.