Finding the Fourth Proportional to 5,178,836.65, 7,768,566.36 and 1,584,634.74
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Solution
The fourth proportional to 5,178,836.65, 7,768,566.36 and 1,584,634.74 is: 2,377,047.38
Step by Step Solution
- Step 1: Write the proportion equation
5,178,836.65 : 7,768,566.36 = 1,584,634.74 : x - Step 2: Convert to fraction form
5,178,836.65/7,768,566.36 = 1,584,634.74/x - Step 3: Cross multiply
5,178,836.65x = 7,768,566.36 × 1,584,634.74 - Step 4: Simplify right side
5,178,836.65x = 12,310,340,087,285.34 - Step 5: Solve for x
x = 12,310,340,087,285.34/5,178,836.65 - Step 6: Final answer
x = 2,377,047.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.