Finding the Fourth Proportional to 3,879,926.16, 5,353,812.63 and 2,248,303.74
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Solution
The fourth proportional to 3,879,926.16, 5,353,812.63 and 2,248,303.74 is: 3,102,377.85
Step by Step Solution
- Step 1: Write the proportion equation
3,879,926.16 : 5,353,812.63 = 2,248,303.74 : x - Step 2: Convert to fraction form
3,879,926.16/5,353,812.63 = 2,248,303.74/x - Step 3: Cross multiply
3,879,926.16x = 5,353,812.63 × 2,248,303.74 - Step 4: Simplify right side
3,879,926.16x = 12,036,996,959,288.24 - Step 5: Solve for x
x = 12,036,996,959,288.24/3,879,926.16 - Step 6: Final answer
x = 3,102,377.85
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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.