Finding the Fourth Proportional to 8,915,331.04, 12,303,509.61 and 4,995,120.99
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Solution
The fourth proportional to 8,915,331.04, 12,303,509.61 and 4,995,120.99 is: 6,893,464.61
Step by Step Solution
- Step 1: Write the proportion equation
8,915,331.04 : 12,303,509.61 = 4,995,120.99 : x - Step 2: Convert to fraction form
8,915,331.04/12,303,509.61 = 4,995,120.99/x - Step 3: Cross multiply
8,915,331.04x = 12,303,509.61 × 4,995,120.99 - Step 4: Simplify right side
8,915,331.04x = 61,457,519,054,102 - Step 5: Solve for x
x = 61,457,519,054,102/8,915,331.04 - Step 6: Final answer
x = 6,893,464.61
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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.