Finding the Fourth Proportional to 7,920,507.61, 10,928,427.09 and 4,482,748.65
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Solution
The fourth proportional to 7,920,507.61, 10,928,427.09 and 4,482,748.65 is: 6,185,132.85
Step by Step Solution
- Step 1: Write the proportion equation
7,920,507.61 : 10,928,427.09 = 4,482,748.65 : x - Step 2: Convert to fraction form
7,920,507.61/10,928,427.09 = 4,482,748.65/x - Step 3: Cross multiply
7,920,507.61x = 10,928,427.09 × 4,482,748.65 - Step 4: Simplify right side
7,920,507.61x = 48,989,391,784,320.93 - Step 5: Solve for x
x = 48,989,391,784,320.93/7,920,507.61 - Step 6: Final answer
x = 6,185,132.85
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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.